20891050

素因数分解:

$2^1\times 5^2\times {\mathrm{417821}}^1$

素因数の和:417833

約数の個数: 12

約数和(自身を含む): 38857446

約数和(自身を除く): 17966396

約数列:

[1, 2, 5, 10, 25, 50, 417821, 835642, 2089105, 4178210, 10445525, 20891050]

約数ペア:

[(1, 20891050), (2, 10445525), (5, 4178210), (10, 2089105), (25, 835642), (50, 417821)]