123291

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:135

約数の個数: 24

約数和(自身を含む): 216320

約数和(自身を除く): 93029

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 103, 133, 171, 309, 399, 721, 927, 1197, 1957, 2163, 5871, 6489, 13699, 17613, 41097, 123291]

約数ペア:

[(1, 123291), (3, 41097), (7, 17613), (9, 13699), (19, 6489), (21, 5871), (57, 2163), (63, 1957), (103, 1197), (133, 927), (171, 721), (309, 399)]