16998220

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1571}}^1$

素因数の和:2121

約数の個数: 24

約数和(自身を含む): 35785008

約数和(自身を除く): 18786788

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 1571, 2164, 2705, 3142, 5410, 6284, 7855, 10820, 15710, 31420, 849911, 1699822, 3399644, 4249555, 8499110, 16998220]

約数ペア:

[(1, 16998220), (2, 8499110), (4, 4249555), (5, 3399644), (10, 1699822), (20, 849911), (541, 31420), (1082, 15710), (1571, 10820), (2164, 7855), (2705, 6284), (3142, 5410)]