18816231

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1$

素因数の和:435

約数の個数: 32

約数和(自身を含む): 30228480

約数和(自身を除く): 11412249

約数列:

[1, 3, 7, 21, 23, 69, 161, 163, 239, 483, 489, 717, 1141, 1673, 3423, 3749, 5019, 5497, 11247, 16491, 26243, 38479, 38957, 78729, 115437, 116871, 272699, 818097, 896011, 2688033, 6272077, 18816231]

約数ペア:

[(1, 18816231), (3, 6272077), (7, 2688033), (21, 896011), (23, 818097), (69, 272699), (161, 116871), (163, 115437), (239, 78729), (483, 38957), (489, 38479), (717, 26243), (1141, 16491), (1673, 11247), (3423, 5497), (3749, 5019)]