21355204

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{823}}^1$

素因数の和:1339

約数の個数: 24

約数和(自身を含む): 40376000

約数和(自身を除く): 19020796

約数列:

[1, 2, 4, 13, 26, 52, 499, 823, 998, 1646, 1996, 3292, 6487, 10699, 12974, 21398, 25948, 42796, 410677, 821354, 1642708, 5338801, 10677602, 21355204]

約数ペア:

[(1, 21355204), (2, 10677602), (4, 5338801), (13, 1642708), (26, 821354), (52, 410677), (499, 42796), (823, 25948), (998, 21398), (1646, 12974), (1996, 10699), (3292, 6487)]