18471381

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 26215200

約数和(自身を除く): 7743819

約数列:

[1, 3, 31, 43, 93, 129, 149, 447, 961, 1333, 2883, 3999, 4619, 6407, 13857, 19221, 41323, 123969, 143189, 198617, 429567, 595851, 6157127, 18471381]

約数ペア:

[(1, 18471381), (3, 6157127), (31, 595851), (43, 429567), (93, 198617), (129, 143189), (149, 123969), (447, 41323), (961, 19221), (1333, 13857), (2883, 6407), (3999, 4619)]