18855801

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:310

約数の個数: 32

約数和(自身を含む): 29040000

約数和(自身を除く): 10184199

約数列:

[1, 3, 9, 27, 43, 109, 129, 149, 327, 387, 447, 981, 1161, 1341, 2943, 4023, 4687, 6407, 14061, 16241, 19221, 42183, 48723, 57663, 126549, 146169, 172989, 438507, 698363, 2095089, 6285267, 18855801]

約数ペア:

[(1, 18855801), (3, 6285267), (9, 2095089), (27, 698363), (43, 438507), (109, 172989), (129, 146169), (149, 126549), (327, 57663), (387, 48723), (447, 42183), (981, 19221), (1161, 16241), (1341, 14061), (2943, 6407), (4023, 4687)]