123321

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:152

約数の個数: 16

約数和(自身を含む): 186048

約数和(自身を除く): 62727

約数列:

[1, 3, 11, 33, 37, 101, 111, 303, 407, 1111, 1221, 3333, 3737, 11211, 41107, 123321]

約数ペア:

[(1, 123321), (3, 41107), (11, 11211), (33, 3737), (37, 3333), (101, 1221), (111, 1111), (303, 407)]