21493059620

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4459141}}^1$

素因数の和:4459391

約数の個数: 24

約数和(自身を含む): 45322719288

約数和(自身を除く): 23829659668

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4820, 4459141, 8918282, 17836564, 22295705, 44591410, 89182820, 1074652981, 2149305962, 4298611924, 5373264905, 10746529810, 21493059620]

約数ペア:

[(1, 21493059620), (2, 10746529810), (4, 5373264905), (5, 4298611924), (10, 2149305962), (20, 1074652981), (241, 89182820), (482, 44591410), (964, 22295705), (1205, 17836564), (2410, 8918282), (4820, 4459141)]