20631789

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{577}}^1$

素因数の和:749

約数の個数: 24

約数和(自身を含む): 31107960

約数和(自身を除く): 10476171

約数列:

[1, 3, 9, 29, 87, 137, 261, 411, 577, 1233, 1731, 3973, 5193, 11919, 16733, 35757, 50199, 79049, 150597, 237147, 711441, 2292421, 6877263, 20631789]

約数ペア:

[(1, 20631789), (3, 6877263), (9, 2292421), (29, 711441), (87, 237147), (137, 150597), (261, 79049), (411, 50199), (577, 35757), (1233, 16733), (1731, 11919), (3973, 5193)]