20257798

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{4021}}^1$

素因数の和:4263

約数の個数: 16

約数和(自身を含む): 33302160

約数和(自身を除く): 13044362

約数列:

[1, 2, 11, 22, 229, 458, 2519, 4021, 5038, 8042, 44231, 88462, 920809, 1841618, 10128899, 20257798]

約数ペア:

[(1, 20257798), (2, 10128899), (11, 1841618), (22, 920809), (229, 88462), (458, 44231), (2519, 8042), (4021, 5038)]