320661

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:137

約数の個数: 24

約数和(自身を含む): 524160

約数和(自身を除く): 203499

約数列:

[1, 3, 9, 11, 33, 41, 79, 99, 123, 237, 369, 451, 711, 869, 1353, 2607, 3239, 4059, 7821, 9717, 29151, 35629, 106887, 320661]

約数ペア:

[(1, 320661), (3, 106887), (9, 35629), (11, 29151), (33, 9717), (41, 7821), (79, 4059), (99, 3239), (123, 2607), (237, 1353), (369, 869), (451, 711)]