1621521

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{1489}}^1$

素因数の和:1517

約数の個数: 18

約数和(自身を含む): 2576210

約数和(自身を除く): 954689

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 1489, 4467, 13401, 16379, 49137, 147411, 180169, 540507, 1621521]

約数ペア:

[(1, 1621521), (3, 540507), (9, 180169), (11, 147411), (33, 49137), (99, 16379), (121, 13401), (363, 4467), (1089, 1489)]