21173031

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{6899}}^1$

素因数の和:6947

約数の個数: 24

約数和(自身を含む): 34444800

約数和(自身を除く): 13271769

約数列:

[1, 3, 9, 11, 31, 33, 93, 99, 279, 341, 1023, 3069, 6899, 20697, 62091, 75889, 213869, 227667, 641607, 683001, 1924821, 2352559, 7057677, 21173031]

約数ペア:

[(1, 21173031), (3, 7057677), (9, 2352559), (11, 1924821), (31, 683001), (33, 641607), (93, 227667), (99, 213869), (279, 75889), (341, 62091), (1023, 20697), (3069, 6899)]