21756872

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{159977}}^1$

素因数の和:160000

約数の個数: 16

約数和(自身を含む): 43194060

約数和(自身を除く): 21437188

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 159977, 319954, 639908, 1279816, 2719609, 5439218, 10878436, 21756872]

約数ペア:

[(1, 21756872), (2, 10878436), (4, 5439218), (8, 2719609), (17, 1279816), (34, 639908), (68, 319954), (136, 159977)]