21019170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{700639}}^1$

素因数の和:700649

約数の個数: 16

約数和(自身を含む): 50446080

約数和(自身を除く): 29426910

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 700639, 1401278, 2101917, 3503195, 4203834, 7006390, 10509585, 21019170]

約数ペア:

[(1, 21019170), (2, 10509585), (3, 7006390), (5, 4203834), (6, 3503195), (10, 2101917), (15, 1401278), (30, 700639)]