21618960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:477

約数の個数: 160

約数和(自身を含む): 77137920

約数和(自身を除く): 55518960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 19, 20, 22, 24, 30, 33, 38, 40, 44, 48, 55, 57, 60, 66, 76, 80, 88, 95, 110, 114, 120, 132, 152, 165, 176, 190, 209, 220, 228, 240, 264, 285, 304, 330, 380, 418, 431, 440, 456, 528, 570, 627, 660, 760, 836, 862, 880, 912, 1045, 1140, 1254, 1293, 1320, 1520, 1672, 1724, 2090, 2155, 2280, 2508, 2586, 2640, 3135, 3344, 3448, 4180, 4310, 4560, 4741, 5016, 5172, 6270, 6465, 6896, 8189, 8360, 8620, 9482, 10032, 10344, 12540, 12930, 14223, 16378, 16720, 17240, 18964, 20688, 23705, 24567, 25080, 25860, 28446, 32756, 34480, 37928, 40945, 47410, 49134, 50160, 51720, 56892, 65512, 71115, 75856, 81890, 90079, 94820, 98268, 103440, 113784, 122835, 131024, 142230, 163780, 180158, 189640, 196536, 227568, 245670, 270237, 284460, 327560, 360316, 379280, 393072, 450395, 491340, 540474, 568920, 655120, 720632, 900790, 982680, 1080948, 1137840, 1351185, 1441264, 1801580, 1965360, 2161896, 2702370, 3603160, 4323792, 5404740, 7206320, 10809480, 21618960]

約数ペア:

[(1, 21618960), (2, 10809480), (3, 7206320), (4, 5404740), (5, 4323792), (6, 3603160), (8, 2702370), (10, 2161896), (11, 1965360), (12, 1801580), (15, 1441264), (16, 1351185), (19, 1137840), (20, 1080948), (22, 982680), (24, 900790), (30, 720632), (33, 655120), (38, 568920), (40, 540474), (44, 491340), (48, 450395), (55, 393072), (57, 379280), (60, 360316), (66, 327560), (76, 284460), (80, 270237), (88, 245670), (95, 227568), (110, 196536), (114, 189640), (120, 180158), (132, 163780), (152, 142230), (165, 131024), (176, 122835), (190, 113784), (209, 103440), (220, 98268), (228, 94820), (240, 90079), (264, 81890), (285, 75856), (304, 71115), (330, 65512), (380, 56892), (418, 51720), (431, 50160), (440, 49134), (456, 47410), (528, 40945), (570, 37928), (627, 34480), (660, 32756), (760, 28446), (836, 25860), (862, 25080), (880, 24567), (912, 23705), (1045, 20688), (1140, 18964), (1254, 17240), (1293, 16720), (1320, 16378), (1520, 14223), (1672, 12930), (1724, 12540), (2090, 10344), (2155, 10032), (2280, 9482), (2508, 8620), (2586, 8360), (2640, 8189), (3135, 6896), (3344, 6465), (3448, 6270), (4180, 5172), (4310, 5016), (4560, 4741)]