20289004

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{163621}}^1$

素因数の和:163656

約数の個数: 12

約数和(自身を含む): 36651328

約数和(自身を除く): 16362324

約数列:

[1, 2, 4, 31, 62, 124, 163621, 327242, 654484, 5072251, 10144502, 20289004]

約数ペア:

[(1, 20289004), (2, 10144502), (4, 5072251), (31, 654484), (62, 327242), (124, 163621)]