21926770

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{128981}}^1$

素因数の和:129005

約数の個数: 16

約数和(自身を含む): 41790168

約数和(自身を除く): 19863398

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 128981, 257962, 644905, 1289810, 2192677, 4385354, 10963385, 21926770]

約数ペア:

[(1, 21926770), (2, 10963385), (5, 4385354), (10, 2192677), (17, 1289810), (34, 644905), (85, 257962), (170, 128981)]