21840804895

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4271}}^1\times {\mathrm{11239}}^1$

素因数の和:15535

約数の個数: 32

約数和(自身を含む): 32267612160

約数和(自身を除く): 10426807265

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 4271, 11239, 21355, 29897, 55523, 56195, 78673, 146107, 149485, 277615, 388661, 393365, 730535, 1022749, 1943305, 5113745, 48001769, 240008845, 336012383, 624022997, 1680061915, 3120114985, 4368160979, 21840804895]

約数ペア:

[(1, 21840804895), (5, 4368160979), (7, 3120114985), (13, 1680061915), (35, 624022997), (65, 336012383), (91, 240008845), (455, 48001769), (4271, 5113745), (11239, 1943305), (21355, 1022749), (29897, 730535), (55523, 393365), (56195, 388661), (78673, 277615), (146107, 149485)]