21707070874

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{821}}^1\times {\mathrm{777641}}^1$

素因数の和:778481

約数の個数: 16

約数和(自身を含む): 34517973096

約数和(自身を除く): 12810902222

約数列:

[1, 2, 17, 34, 821, 1642, 13957, 27914, 777641, 1555282, 13219897, 26439794, 638443261, 1276886522, 10853535437, 21707070874]

約数ペア:

[(1, 21707070874), (2, 10853535437), (17, 1276886522), (34, 638443261), (821, 26439794), (1642, 13219897), (13957, 1555282), (27914, 777641)]