20781617654

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{5731279}}^1$

素因数の和:5731332

約数の個数: 24

約数和(自身を含む): 37241857440

約数和(自身を除く): 16460239786

約数列:

[1, 2, 7, 14, 37, 49, 74, 98, 259, 518, 1813, 3626, 5731279, 11462558, 40118953, 80237906, 212057323, 280832671, 424114646, 561665342, 1484401261, 2968802522, 10390808827, 20781617654]

約数ペア:

[(1, 20781617654), (2, 10390808827), (7, 2968802522), (14, 1484401261), (37, 561665342), (49, 424114646), (74, 280832671), (98, 212057323), (259, 80237906), (518, 40118953), (1813, 11462558), (3626, 5731279)]