20216884

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 36174600

約数和(自身を除く): 15957716

約数列:

[1, 2, 4, 89, 109, 178, 218, 356, 436, 521, 1042, 2084, 9701, 19402, 38804, 46369, 56789, 92738, 113578, 185476, 227156, 5054221, 10108442, 20216884]

約数ペア:

[(1, 20216884), (2, 10108442), (4, 5054221), (89, 227156), (109, 185476), (178, 113578), (218, 92738), (356, 56789), (436, 46369), (521, 38804), (1042, 19402), (2084, 9701)]