21086630

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5393}}^1$

素因数の和:5440

約数の個数: 32

約数和(自身を含む): 41943744

約数和(自身を除く): 20857114

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955, 3910, 5393, 10786, 26965, 53930, 91681, 124039, 183362, 248078, 458405, 620195, 916810, 1240390, 2108663, 4217326, 10543315, 21086630]

約数ペア:

[(1, 21086630), (2, 10543315), (5, 4217326), (10, 2108663), (17, 1240390), (23, 916810), (34, 620195), (46, 458405), (85, 248078), (115, 183362), (170, 124039), (230, 91681), (391, 53930), (782, 26965), (1955, 10786), (3910, 5393)]