1288221

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{379}}^1$

素因数の和:496

約数の個数: 16

約数和(自身を含む): 1896960

約数和(自身を除く): 608739

約数列:

[1, 3, 11, 33, 103, 309, 379, 1133, 1137, 3399, 4169, 12507, 39037, 117111, 429407, 1288221]

約数ペア:

[(1, 1288221), (3, 429407), (11, 117111), (33, 39037), (103, 12507), (309, 4169), (379, 3399), (1133, 1137)]