20899955

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1\times {\mathrm{379}}^1$

素因数の和:694

約数の個数: 16

約数和(自身を含む): 25855200

約数和(自身を除く): 4955245

約数列:

[1, 5, 41, 205, 269, 379, 1345, 1895, 11029, 15539, 55145, 77695, 101951, 509755, 4179991, 20899955]

約数ペア:

[(1, 20899955), (5, 4179991), (41, 509755), (205, 101951), (269, 77695), (379, 55145), (1345, 15539), (1895, 11029)]