19812460

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18691}}^1$

素因数の和:18753

約数の個数: 24

約数和(自身を含む): 42393456

約数和(自身を除く): 22580996

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 18691, 37382, 74764, 93455, 186910, 373820, 990623, 1981246, 3962492, 4953115, 9906230, 19812460]

約数ペア:

[(1, 19812460), (2, 9906230), (4, 4953115), (5, 3962492), (10, 1981246), (20, 990623), (53, 373820), (106, 186910), (212, 93455), (265, 74764), (530, 37382), (1060, 18691)]