16427420

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1951}}^1$

素因数の和:2381

約数の個数: 24

約数和(自身を含む): 34597248

約数和(自身を除く): 18169828

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 1951, 2105, 3902, 4210, 7804, 8420, 9755, 19510, 39020, 821371, 1642742, 3285484, 4106855, 8213710, 16427420]

約数ペア:

[(1, 16427420), (2, 8213710), (4, 4106855), (5, 3285484), (10, 1642742), (20, 821371), (421, 39020), (842, 19510), (1684, 9755), (1951, 8420), (2105, 7804), (3902, 4210)]