18228231

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7057}}^1$

素因数の和:7111

約数の個数: 24

約数和(自身を含む): 30829344

約数和(自身を除く): 12601113

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 7057, 21171, 49399, 63513, 148197, 289337, 444591, 868011, 2025359, 2604033, 6076077, 18228231]

約数ペア:

[(1, 18228231), (3, 6076077), (7, 2604033), (9, 2025359), (21, 868011), (41, 444591), (63, 289337), (123, 148197), (287, 63513), (369, 49399), (861, 21171), (2583, 7057)]