21372892

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{313}}^1\times {\mathrm{397}}^1$

素因数の和:757

約数の個数: 24

約数和(自身を含む): 38491376

約数和(自身を除く): 17118484

約数列:

[1, 2, 4, 43, 86, 172, 313, 397, 626, 794, 1252, 1588, 13459, 17071, 26918, 34142, 53836, 68284, 124261, 248522, 497044, 5343223, 10686446, 21372892]

約数ペア:

[(1, 21372892), (2, 10686446), (4, 5343223), (43, 497044), (86, 248522), (172, 124261), (313, 68284), (397, 53836), (626, 34142), (794, 26918), (1252, 17071), (1588, 13459)]