21017160

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{739}}^1$

素因数の和:835

約数の個数: 96

約数和(自身を含む): 69264000

約数和(自身を除く): 48246840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 79, 90, 120, 158, 180, 237, 316, 360, 395, 474, 632, 711, 739, 790, 948, 1185, 1422, 1478, 1580, 1896, 2217, 2370, 2844, 2956, 3160, 3555, 3695, 4434, 4740, 5688, 5912, 6651, 7110, 7390, 8868, 9480, 11085, 13302, 14220, 14780, 17736, 22170, 26604, 28440, 29560, 33255, 44340, 53208, 58381, 66510, 88680, 116762, 133020, 175143, 233524, 266040, 291905, 350286, 467048, 525429, 583810, 700572, 875715, 1050858, 1167620, 1401144, 1751430, 2101716, 2335240, 2627145, 3502860, 4203432, 5254290, 7005720, 10508580, 21017160]

約数ペア:

[(1, 21017160), (2, 10508580), (3, 7005720), (4, 5254290), (5, 4203432), (6, 3502860), (8, 2627145), (9, 2335240), (10, 2101716), (12, 1751430), (15, 1401144), (18, 1167620), (20, 1050858), (24, 875715), (30, 700572), (36, 583810), (40, 525429), (45, 467048), (60, 350286), (72, 291905), (79, 266040), (90, 233524), (120, 175143), (158, 133020), (180, 116762), (237, 88680), (316, 66510), (360, 58381), (395, 53208), (474, 44340), (632, 33255), (711, 29560), (739, 28440), (790, 26604), (948, 22170), (1185, 17736), (1422, 14780), (1478, 14220), (1580, 13302), (1896, 11085), (2217, 9480), (2370, 8868), (2844, 7390), (2956, 7110), (3160, 6651), (3555, 5912), (3695, 5688), (4434, 4740)]