21938762

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{821}}^1$

素因数の和:1285

約数の個数: 16

約数和(自身を含む): 34089984

約数和(自身を除く): 12151222

約数列:

[1, 2, 31, 62, 431, 821, 862, 1642, 13361, 25451, 26722, 50902, 353851, 707702, 10969381, 21938762]

約数ペア:

[(1, 21938762), (2, 10969381), (31, 707702), (62, 353851), (431, 50902), (821, 26722), (862, 25451), (1642, 13361)]