9218781

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:91

約数の個数: 72

約数和(自身を含む): 17128800

約数和(自身を除く): 7910019

約数列:

[1, 3, 9, 11, 13, 19, 29, 33, 39, 57, 87, 99, 117, 143, 169, 171, 209, 247, 261, 319, 377, 429, 507, 551, 627, 741, 957, 1131, 1287, 1521, 1653, 1859, 1881, 2223, 2717, 2871, 3211, 3393, 4147, 4901, 4959, 5577, 6061, 7163, 8151, 9633, 12441, 14703, 16731, 18183, 21489, 24453, 28899, 35321, 37323, 44109, 53911, 54549, 64467, 78793, 93119, 105963, 161733, 236379, 279357, 317889, 485199, 709137, 838071, 1024309, 3072927, 9218781]

約数ペア:

[(1, 9218781), (3, 3072927), (9, 1024309), (11, 838071), (13, 709137), (19, 485199), (29, 317889), (33, 279357), (39, 236379), (57, 161733), (87, 105963), (99, 93119), (117, 78793), (143, 64467), (169, 54549), (171, 53911), (209, 44109), (247, 37323), (261, 35321), (319, 28899), (377, 24453), (429, 21489), (507, 18183), (551, 16731), (627, 14703), (741, 12441), (957, 9633), (1131, 8151), (1287, 7163), (1521, 6061), (1653, 5577), (1859, 4959), (1881, 4901), (2223, 4147), (2717, 3393), (2871, 3211)]