21117770

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{14173}}^1$

素因数の和:14329

約数の個数: 16

約数和(自身を含む): 38269800

約数和(自身を除く): 17152030

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 14173, 28346, 70865, 141730, 2111777, 4223554, 10558885, 21117770]

約数ペア:

[(1, 21117770), (2, 10558885), (5, 4223554), (10, 2111777), (149, 141730), (298, 70865), (745, 28346), (1490, 14173)]