21105702915

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127913351}}^1$

素因数の和:127913370

約数の個数: 16

約数和(自身を含む): 36839045376

約数和(自身を除く): 15733342461

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 127913351, 383740053, 639566755, 1407046861, 1918700265, 4221140583, 7035234305, 21105702915]

約数ペア:

[(1, 21105702915), (3, 7035234305), (5, 4221140583), (11, 1918700265), (15, 1407046861), (33, 639566755), (55, 383740053), (165, 127913351)]