21490233

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{881}}^1$

素因数の和:1104

約数の個数: 16

約数和(自身を含む): 29465856

約数和(自身を除く): 7975623

約数列:

[1, 3, 47, 141, 173, 519, 881, 2643, 8131, 24393, 41407, 124221, 152413, 457239, 7163411, 21490233]

約数ペア:

[(1, 21490233), (3, 7163411), (47, 457239), (141, 152413), (173, 124221), (519, 41407), (881, 24393), (2643, 8131)]