18906890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{111217}}^1$

素因数の和:111241

約数の個数: 16

約数和(自身を含む): 36034632

約数和(自身を除く): 17127742

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 111217, 222434, 556085, 1112170, 1890689, 3781378, 9453445, 18906890]

約数ペア:

[(1, 18906890), (2, 9453445), (5, 3781378), (10, 1890689), (17, 1112170), (34, 556085), (85, 222434), (170, 111217)]