21737520

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1$

素因数の和:272

約数の個数: 240

約数和(自身を含む): 88208640

約数和(自身を除く): 66471120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 48, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 105, 112, 114, 120, 126, 133, 140, 144, 152, 168, 171, 180, 190, 210, 227, 228, 240, 252, 266, 280, 285, 304, 315, 336, 342, 360, 380, 399, 420, 454, 456, 504, 532, 560, 570, 630, 665, 681, 684, 720, 760, 798, 840, 855, 908, 912, 1008, 1064, 1135, 1140, 1197, 1260, 1330, 1362, 1368, 1520, 1589, 1596, 1680, 1710, 1816, 1995, 2043, 2128, 2270, 2280, 2394, 2520, 2660, 2724, 2736, 3178, 3192, 3405, 3420, 3632, 3990, 4086, 4313, 4540, 4560, 4767, 4788, 5040, 5320, 5448, 5985, 6356, 6384, 6810, 6840, 7945, 7980, 8172, 8626, 9080, 9534, 9576, 10215, 10640, 10896, 11970, 12712, 12939, 13620, 13680, 14301, 15890, 15960, 16344, 17252, 18160, 19068, 19152, 20430, 21565, 23835, 23940, 25424, 25878, 27240, 28602, 30191, 31780, 31920, 32688, 34504, 38136, 38817, 40860, 43130, 47670, 47880, 51756, 54480, 57204, 60382, 63560, 64695, 69008, 71505, 76272, 77634, 81720, 86260, 90573, 95340, 95760, 103512, 114408, 120764, 127120, 129390, 143010, 150955, 155268, 163440, 172520, 181146, 190680, 194085, 207024, 228816, 241528, 258780, 271719, 286020, 301910, 310536, 345040, 362292, 381360, 388170, 452865, 483056, 517560, 543438, 572040, 603820, 621072, 724584, 776340, 905730, 1035120, 1086876, 1144080, 1207640, 1358595, 1449168, 1552680, 1811460, 2173752, 2415280, 2717190, 3105360, 3622920, 4347504, 5434380, 7245840, 10868760, 21737520]

約数ペア:

[(1, 21737520), (2, 10868760), (3, 7245840), (4, 5434380), (5, 4347504), (6, 3622920), (7, 3105360), (8, 2717190), (9, 2415280), (10, 2173752), (12, 1811460), (14, 1552680), (15, 1449168), (16, 1358595), (18, 1207640), (19, 1144080), (20, 1086876), (21, 1035120), (24, 905730), (28, 776340), (30, 724584), (35, 621072), (36, 603820), (38, 572040), (40, 543438), (42, 517560), (45, 483056), (48, 452865), (56, 388170), (57, 381360), (60, 362292), (63, 345040), (70, 310536), (72, 301910), (76, 286020), (80, 271719), (84, 258780), (90, 241528), (95, 228816), (105, 207024), (112, 194085), (114, 190680), (120, 181146), (126, 172520), (133, 163440), (140, 155268), (144, 150955), (152, 143010), (168, 129390), (171, 127120), (180, 120764), (190, 114408), (210, 103512), (227, 95760), (228, 95340), (240, 90573), (252, 86260), (266, 81720), (280, 77634), (285, 76272), (304, 71505), (315, 69008), (336, 64695), (342, 63560), (360, 60382), (380, 57204), (399, 54480), (420, 51756), (454, 47880), (456, 47670), (504, 43130), (532, 40860), (560, 38817), (570, 38136), (630, 34504), (665, 32688), (681, 31920), (684, 31780), (720, 30191), (760, 28602), (798, 27240), (840, 25878), (855, 25424), (908, 23940), (912, 23835), (1008, 21565), (1064, 20430), (1135, 19152), (1140, 19068), (1197, 18160), (1260, 17252), (1330, 16344), (1362, 15960), (1368, 15890), (1520, 14301), (1589, 13680), (1596, 13620), (1680, 12939), (1710, 12712), (1816, 11970), (1995, 10896), (2043, 10640), (2128, 10215), (2270, 9576), (2280, 9534), (2394, 9080), (2520, 8626), (2660, 8172), (2724, 7980), (2736, 7945), (3178, 6840), (3192, 6810), (3405, 6384), (3420, 6356), (3632, 5985), (3990, 5448), (4086, 5320), (4313, 5040), (4540, 4788), (4560, 4767)]