21917820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{365297}}^1$

素因数の和:365309

約数の個数: 24

約数和(自身を含む): 61370064

約数和(自身を除く): 39452244

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 365297, 730594, 1095891, 1461188, 1826485, 2191782, 3652970, 4383564, 5479455, 7305940, 10958910, 21917820]

約数ペア:

[(1, 21917820), (2, 10958910), (3, 7305940), (4, 5479455), (5, 4383564), (6, 3652970), (10, 2191782), (12, 1826485), (15, 1461188), (20, 1095891), (30, 730594), (60, 365297)]