290121

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:232

約数の個数: 16

約数和(自身を含む): 428736

約数和(自身を除く): 138615

約数列:

[1, 3, 13, 39, 43, 129, 173, 519, 559, 1677, 2249, 6747, 7439, 22317, 96707, 290121]

約数ペア:

[(1, 290121), (3, 96707), (13, 22317), (39, 7439), (43, 6747), (129, 2249), (173, 1677), (519, 559)]