20995924

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{499}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 37604000

約数和(自身を除く): 16608076

約数列:

[1, 2, 4, 67, 134, 157, 268, 314, 499, 628, 998, 1996, 10519, 21038, 33433, 42076, 66866, 78343, 133732, 156686, 313372, 5248981, 10497962, 20995924]

約数ペア:

[(1, 20995924), (2, 10497962), (4, 5248981), (67, 313372), (134, 156686), (157, 133732), (268, 78343), (314, 66866), (499, 42076), (628, 33433), (998, 21038), (1996, 10519)]