20415436

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4481}}^1$

素因数の和:4569

約数の個数: 24

約数和(自身を含む): 38401776

約数和(自身を除く): 17986340

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 268, 1139, 2278, 4481, 4556, 8962, 17924, 76177, 152354, 300227, 304708, 600454, 1200908, 5103859, 10207718, 20415436]

約数ペア:

[(1, 20415436), (2, 10207718), (4, 5103859), (17, 1200908), (34, 600454), (67, 304708), (68, 300227), (134, 152354), (268, 76177), (1139, 17924), (2278, 8962), (4481, 4556)]