21291240065

素因数分解:

$5^1\times {\mathrm{10313}}^1\times {\mathrm{412901}}^1$

素因数の和:423219

約数の個数: 8

約数和(自身を含む): 25552027368

約数和(自身を除く): 4260787303

約数列:

[1, 5, 10313, 51565, 412901, 2064505, 4258248013, 21291240065]

約数ペア:

[(1, 21291240065), (5, 4258248013), (10313, 2064505), (51565, 412901)]