20913633

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19861}}^1$

素因数の和:19886

約数の個数: 20

約数和(自身を含む): 33646228

約数和(自身を除く): 12732595

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 19861, 59583, 178749, 258193, 536247, 774579, 1608741, 2323737, 6971211, 20913633]

約数ペア:

[(1, 20913633), (3, 6971211), (9, 2323737), (13, 1608741), (27, 774579), (39, 536247), (81, 258193), (117, 178749), (351, 59583), (1053, 19861)]