19618191

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 29268096

約数和(自身を除く): 9649905

約数列:

[1, 3, 9, 43, 129, 163, 311, 387, 489, 933, 1467, 2799, 7009, 13373, 21027, 40119, 50693, 63081, 120357, 152079, 456237, 2179799, 6539397, 19618191]

約数ペア:

[(1, 19618191), (3, 6539397), (9, 2179799), (43, 456237), (129, 152079), (163, 120357), (311, 63081), (387, 50693), (489, 40119), (933, 21027), (1467, 13373), (2799, 7009)]