18955107

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:304

約数の個数: 32

約数和(自身を含む): 29126400

約数和(自身を除く): 10171293

約数列:

[1, 3, 9, 27, 59, 73, 163, 177, 219, 489, 531, 657, 1467, 1593, 1971, 4307, 4401, 9617, 11899, 12921, 28851, 35697, 38763, 86553, 107091, 116289, 259659, 321273, 702041, 2106123, 6318369, 18955107]

約数ペア:

[(1, 18955107), (3, 6318369), (9, 2106123), (27, 702041), (59, 321273), (73, 259659), (163, 116289), (177, 107091), (219, 86553), (489, 38763), (531, 35697), (657, 28851), (1467, 12921), (1593, 11899), (1971, 9617), (4307, 4401)]