21231360

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:143

約数の個数: 216

約数和(自身を含む): 78121680

約数和(自身を除く): 56890320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 76, 80, 90, 95, 96, 97, 114, 120, 128, 144, 152, 160, 171, 180, 190, 192, 194, 228, 240, 256, 285, 288, 291, 304, 320, 342, 360, 380, 384, 388, 456, 480, 485, 570, 576, 582, 608, 640, 684, 720, 760, 768, 776, 855, 873, 912, 960, 970, 1140, 1152, 1164, 1216, 1280, 1368, 1440, 1455, 1520, 1552, 1710, 1746, 1824, 1843, 1920, 1940, 2280, 2304, 2328, 2432, 2736, 2880, 2910, 3040, 3104, 3420, 3492, 3648, 3686, 3840, 3880, 4365, 4560, 4656, 4864, 5472, 5529, 5760, 5820, 6080, 6208, 6840, 6984, 7296, 7372, 7760, 8730, 9120, 9215, 9312, 10944, 11058, 11520, 11640, 12160, 12416, 13680, 13968, 14592, 14744, 15520, 16587, 17460, 18240, 18430, 18624, 21888, 22116, 23280, 24320, 24832, 27360, 27645, 27936, 29488, 31040, 33174, 34920, 36480, 36860, 37248, 43776, 44232, 46560, 54720, 55290, 55872, 58976, 62080, 66348, 69840, 72960, 73720, 74496, 82935, 88464, 93120, 109440, 110580, 111744, 117952, 124160, 132696, 139680, 147440, 165870, 176928, 186240, 218880, 221160, 223488, 235904, 265392, 279360, 294880, 331740, 353856, 372480, 442320, 471808, 530784, 558720, 589760, 663480, 707712, 884640, 1061568, 1117440, 1179520, 1326960, 1415424, 1769280, 2123136, 2359040, 2653920, 3538560, 4246272, 5307840, 7077120, 10615680, 21231360]

約数ペア:

[(1, 21231360), (2, 10615680), (3, 7077120), (4, 5307840), (5, 4246272), (6, 3538560), (8, 2653920), (9, 2359040), (10, 2123136), (12, 1769280), (15, 1415424), (16, 1326960), (18, 1179520), (19, 1117440), (20, 1061568), (24, 884640), (30, 707712), (32, 663480), (36, 589760), (38, 558720), (40, 530784), (45, 471808), (48, 442320), (57, 372480), (60, 353856), (64, 331740), (72, 294880), (76, 279360), (80, 265392), (90, 235904), (95, 223488), (96, 221160), (97, 218880), (114, 186240), (120, 176928), (128, 165870), (144, 147440), (152, 139680), (160, 132696), (171, 124160), (180, 117952), (190, 111744), (192, 110580), (194, 109440), (228, 93120), (240, 88464), (256, 82935), (285, 74496), (288, 73720), (291, 72960), (304, 69840), (320, 66348), (342, 62080), (360, 58976), (380, 55872), (384, 55290), (388, 54720), (456, 46560), (480, 44232), (485, 43776), (570, 37248), (576, 36860), (582, 36480), (608, 34920), (640, 33174), (684, 31040), (720, 29488), (760, 27936), (768, 27645), (776, 27360), (855, 24832), (873, 24320), (912, 23280), (960, 22116), (970, 21888), (1140, 18624), (1152, 18430), (1164, 18240), (1216, 17460), (1280, 16587), (1368, 15520), (1440, 14744), (1455, 14592), (1520, 13968), (1552, 13680), (1710, 12416), (1746, 12160), (1824, 11640), (1843, 11520), (1920, 11058), (1940, 10944), (2280, 9312), (2304, 9215), (2328, 9120), (2432, 8730), (2736, 7760), (2880, 7372), (2910, 7296), (3040, 6984), (3104, 6840), (3420, 6208), (3492, 6080), (3648, 5820), (3686, 5760), (3840, 5529), (3880, 5472), (4365, 4864), (4560, 4656)]