20851948

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{2927}}^1$

素因数の和:3081

約数の個数: 24

約数和(自身を含む): 39598272

約数和(自身を除く): 18746324

約数列:

[1, 2, 4, 13, 26, 52, 137, 274, 548, 1781, 2927, 3562, 5854, 7124, 11708, 38051, 76102, 152204, 400999, 801998, 1603996, 5212987, 10425974, 20851948]

約数ペア:

[(1, 20851948), (2, 10425974), (4, 5212987), (13, 1603996), (26, 801998), (52, 400999), (137, 152204), (274, 76102), (548, 38051), (1781, 11708), (2927, 7124), (3562, 5854)]