21285245

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1\times {\mathrm{373}}^1$

素因数の和:592

約数の個数: 16

約数和(自身を含む): 26093232

約数和(自身を除く): 4807987

約数列:

[1, 5, 101, 113, 373, 505, 565, 1865, 11413, 37673, 42149, 57065, 188365, 210745, 4257049, 21285245]

約数ペア:

[(1, 21285245), (5, 4257049), (101, 210745), (113, 188365), (373, 57065), (505, 42149), (565, 37673), (1865, 11413)]