21189710

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{29027}}^1$

素因数の和:29107

約数の個数: 16

約数和(自身を含む): 38665296

約数和(自身を除く): 17475586

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 29027, 58054, 145135, 290270, 2118971, 4237942, 10594855, 21189710]

約数ペア:

[(1, 21189710), (2, 10594855), (5, 4237942), (10, 2118971), (73, 290270), (146, 145135), (365, 58054), (730, 29027)]