287972019

素因数分解:

$3^2\times {\mathrm{193}}^2\times {\mathrm{859}}^1$

素因数の和:1251

約数の個数: 18

約数和(自身を含む): 418612740

約数和(自身を除く): 130640721

約数列:

[1, 3, 9, 193, 579, 859, 1737, 2577, 7731, 37249, 111747, 165787, 335241, 497361, 1492083, 31996891, 95990673, 287972019]

約数ペア:

[(1, 287972019), (3, 95990673), (9, 31996891), (193, 1492083), (579, 497361), (859, 335241), (1737, 165787), (2577, 111747), (7731, 37249)]