21288579

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{14753}}^1$

素因数の和:14806

約数の個数: 16

約数和(自身を含む): 31396512

約数和(自身を除く): 10107933

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 14753, 44259, 191789, 545861, 575367, 1637583, 7096193, 21288579]

約数ペア:

[(1, 21288579), (3, 7096193), (13, 1637583), (37, 575367), (39, 545861), (111, 191789), (481, 44259), (1443, 14753)]