21657661438

素因数分解:

$2^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{823}}^1\times {\mathrm{10501}}^1$

素因数の和:11512

約数の個数: 32

約数和(自身を含む): 37383759360

約数和(自身を除く): 15726097922

約数列:

[1, 2, 7, 14, 179, 358, 823, 1253, 1646, 2506, 5761, 10501, 11522, 21002, 73507, 147014, 147317, 294634, 1031219, 1879679, 2062438, 3759358, 8642323, 13157753, 17284646, 26315506, 60496261, 120992522, 1546975817, 3093951634, 10828830719, 21657661438]

約数ペア:

[(1, 21657661438), (2, 10828830719), (7, 3093951634), (14, 1546975817), (179, 120992522), (358, 60496261), (823, 26315506), (1253, 17284646), (1646, 13157753), (2506, 8642323), (5761, 3759358), (10501, 2062438), (11522, 1879679), (21002, 1031219), (73507, 294634), (147014, 147317)]