18200223

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{359}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 27181440

約数和(自身を除く): 8981217

約数列:

[1, 3, 9, 43, 129, 131, 359, 387, 393, 1077, 1179, 3231, 5633, 15437, 16899, 46311, 47029, 50697, 138933, 141087, 423261, 2022247, 6066741, 18200223]

約数ペア:

[(1, 18200223), (3, 6066741), (9, 2022247), (43, 423261), (129, 141087), (131, 138933), (359, 50697), (387, 47029), (393, 46311), (1077, 16899), (1179, 15437), (3231, 5633)]