18208905

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{653}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 34468416

約数和(自身を除く): 16259511

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 169, 195, 429, 507, 653, 715, 845, 1859, 1959, 2145, 2535, 3265, 5577, 7183, 8489, 9295, 9795, 21549, 25467, 27885, 35915, 42445, 93379, 107745, 110357, 127335, 280137, 331071, 466895, 551785, 1213927, 1400685, 1655355, 3641781, 6069635, 18208905]

約数ペア:

[(1, 18208905), (3, 6069635), (5, 3641781), (11, 1655355), (13, 1400685), (15, 1213927), (33, 551785), (39, 466895), (55, 331071), (65, 280137), (143, 127335), (165, 110357), (169, 107745), (195, 93379), (429, 42445), (507, 35915), (653, 27885), (715, 25467), (845, 21549), (1859, 9795), (1959, 9295), (2145, 8489), (2535, 7183), (3265, 5577)]