21296210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1531}}^1$

素因数の和:1658

約数の個数: 32

約数和(自身を含む): 41694912

約数和(自身を除く): 20398702

約数列:

[1, 2, 5, 10, 13, 26, 65, 107, 130, 214, 535, 1070, 1391, 1531, 2782, 3062, 6955, 7655, 13910, 15310, 19903, 39806, 99515, 163817, 199030, 327634, 819085, 1638170, 2129621, 4259242, 10648105, 21296210]

約数ペア:

[(1, 21296210), (2, 10648105), (5, 4259242), (10, 2129621), (13, 1638170), (26, 819085), (65, 327634), (107, 199030), (130, 163817), (214, 99515), (535, 39806), (1070, 19903), (1391, 15310), (1531, 13910), (2782, 7655), (3062, 6955)]