21000605764

素因数分解:

$2^2\times {\mathrm{66541}}^1\times {\mathrm{78901}}^1$

素因数の和:145446

約数の個数: 12

約数和(自身を含む): 36752078188

約数和(自身を除く): 15751472424

約数列:

[1, 2, 4, 66541, 78901, 133082, 157802, 266164, 315604, 5250151441, 10500302882, 21000605764]

約数ペア:

[(1, 21000605764), (2, 10500302882), (4, 5250151441), (66541, 315604), (78901, 266164), (133082, 157802)]