21000453580

素因数分解:

$2^2\times 5^1\times {\mathrm{1050022679}}^1$

素因数の和:1050022688

約数の個数: 12

約数和(自身を含む): 44100952560

約数和(自身を除く): 23100498980

約数列:

[1, 2, 4, 5, 10, 20, 1050022679, 2100045358, 4200090716, 5250113395, 10500226790, 21000453580]

約数ペア:

[(1, 21000453580), (2, 10500226790), (4, 5250113395), (5, 4200090716), (10, 2100045358), (20, 1050022679)]