21707470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127691}}^1$

素因数の和:127715

約数の個数: 16

約数和(自身を含む): 41372208

約数和(自身を除く): 19664738

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 127691, 255382, 638455, 1276910, 2170747, 4341494, 10853735, 21707470]

約数ペア:

[(1, 21707470), (2, 10853735), (5, 4341494), (10, 2170747), (17, 1276910), (34, 638455), (85, 255382), (170, 127691)]