18289233

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:203

約数の個数: 40

約数和(自身を含む): 28749600

約数和(自身を除く): 10460367

約数列:

[1, 3, 9, 27, 43, 59, 81, 89, 129, 177, 267, 387, 531, 801, 1161, 1593, 2403, 2537, 3483, 3827, 4779, 5251, 7209, 7611, 11481, 15753, 22833, 34443, 47259, 68499, 103329, 141777, 205497, 225793, 309987, 425331, 677379, 2032137, 6096411, 18289233]

約数ペア:

[(1, 18289233), (3, 6096411), (9, 2032137), (27, 677379), (43, 425331), (59, 309987), (81, 225793), (89, 205497), (129, 141777), (177, 103329), (267, 68499), (387, 47259), (531, 34443), (801, 22833), (1161, 15753), (1593, 11481), (2403, 7611), (2537, 7209), (3483, 5251), (3827, 4779)]