21350470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{125591}}^1$

素因数の和:125615

約数の個数: 16

約数和(自身を含む): 40691808

約数和(自身を除く): 19341338

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 125591, 251182, 627955, 1255910, 2135047, 4270094, 10675235, 21350470]

約数ペア:

[(1, 21350470), (2, 10675235), (5, 4270094), (10, 2135047), (17, 1255910), (34, 627955), (85, 251182), (170, 125591)]