16961980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{121157}}^1$

素因数の和:121173

約数の個数: 24

約数和(自身を含む): 40709088

約数和(自身を除く): 23747108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 121157, 242314, 484628, 605785, 848099, 1211570, 1696198, 2423140, 3392396, 4240495, 8480990, 16961980]

約数ペア:

[(1, 16961980), (2, 8480990), (4, 4240495), (5, 3392396), (7, 2423140), (10, 1696198), (14, 1211570), (20, 848099), (28, 605785), (35, 484628), (70, 242314), (140, 121157)]