20821072

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1951}}^1$

素因数の和:2011

約数の個数: 40

約数和(自身を含む): 43568640

約数和(自身を除く): 22747568

約数列:

[1, 2, 4, 8, 16, 23, 29, 46, 58, 92, 116, 184, 232, 368, 464, 667, 1334, 1951, 2668, 3902, 5336, 7804, 10672, 15608, 31216, 44873, 56579, 89746, 113158, 179492, 226316, 358984, 452632, 717968, 905264, 1301317, 2602634, 5205268, 10410536, 20821072]

約数ペア:

[(1, 20821072), (2, 10410536), (4, 5205268), (8, 2602634), (16, 1301317), (23, 905264), (29, 717968), (46, 452632), (58, 358984), (92, 226316), (116, 179492), (184, 113158), (232, 89746), (368, 56579), (464, 44873), (667, 31216), (1334, 15608), (1951, 10672), (2668, 7804), (3902, 5336)]