21000620140

素因数分解:

$2^2\times 5^1\times {\mathrm{1050031007}}^1$

素因数の和:1050031016

約数の個数: 12

約数和(自身を含む): 44101302336

約数和(自身を除く): 23100682196

約数列:

[1, 2, 4, 5, 10, 20, 1050031007, 2100062014, 4200124028, 5250155035, 10500310070, 21000620140]

約数ペア:

[(1, 21000620140), (2, 10500310070), (4, 5250155035), (5, 4200124028), (10, 2100062014), (20, 1050031007)]