399663

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{367}}^1$

素因数の和:395

約数の個数: 18

約数和(自身を含む): 636272

約数和(自身を除く): 236609

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 367, 1089, 1101, 3303, 4037, 12111, 36333, 44407, 133221, 399663]

約数ペア:

[(1, 399663), (3, 133221), (9, 44407), (11, 36333), (33, 12111), (99, 4037), (121, 3303), (363, 1101), (367, 1089)]