21130189655

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{46757}}^1$

素因数の和:46919

約数の個数: 32

約数和(自身を含む): 27471260160

約数和(自身を除く): 6341070505

約数列:

[1, 5, 19, 67, 71, 95, 335, 355, 1273, 1349, 4757, 6365, 6745, 23785, 46757, 90383, 233785, 451915, 888383, 3132719, 3319747, 4441915, 15663595, 16598735, 59521661, 63075193, 222423049, 297608305, 315375965, 1112115245, 4226037931, 21130189655]

約数ペア:

[(1, 21130189655), (5, 4226037931), (19, 1112115245), (67, 315375965), (71, 297608305), (95, 222423049), (335, 63075193), (355, 59521661), (1273, 16598735), (1349, 15663595), (4757, 4441915), (6365, 3319747), (6745, 3132719), (23785, 888383), (46757, 451915), (90383, 233785)]