21892045

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20177}}^1$

素因数の和:20220

約数の個数: 16

約数和(自身を含む): 30993408

約数和(自身を除く): 9101363

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 20177, 100885, 141239, 625487, 706195, 3127435, 4378409, 21892045]

約数ペア:

[(1, 21892045), (5, 4378409), (7, 3127435), (31, 706195), (35, 625487), (155, 141239), (217, 100885), (1085, 20177)]