21171570

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{557}}^1$

素因数の和:755

約数の個数: 64

約数和(自身を含む): 58496256

約数和(自身を除く): 37324686

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 181, 210, 362, 543, 557, 905, 1086, 1114, 1267, 1671, 1810, 2534, 2715, 2785, 3342, 3801, 3899, 5430, 5570, 6335, 7602, 7798, 8355, 11697, 12670, 16710, 19005, 19495, 23394, 38010, 38990, 58485, 100817, 116970, 201634, 302451, 504085, 604902, 705719, 1008170, 1411438, 1512255, 2117157, 3024510, 3528595, 4234314, 7057190, 10585785, 21171570]

約数ペア:

[(1, 21171570), (2, 10585785), (3, 7057190), (5, 4234314), (6, 3528595), (7, 3024510), (10, 2117157), (14, 1512255), (15, 1411438), (21, 1008170), (30, 705719), (35, 604902), (42, 504085), (70, 302451), (105, 201634), (181, 116970), (210, 100817), (362, 58485), (543, 38990), (557, 38010), (905, 23394), (1086, 19495), (1114, 19005), (1267, 16710), (1671, 12670), (1810, 11697), (2534, 8355), (2715, 7798), (2785, 7602), (3342, 6335), (3801, 5570), (3899, 5430)]