18105225

素因数分解:

$3^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{1481}}^1$

素因数の和:1657

約数の個数: 24

約数和(自身を含む): 30137952

約数和(自身を除く): 12032727

約数列:

[1, 3, 5, 15, 25, 75, 163, 489, 815, 1481, 2445, 4075, 4443, 7405, 12225, 22215, 37025, 111075, 241403, 724209, 1207015, 3621045, 6035075, 18105225]

約数ペア:

[(1, 18105225), (3, 6035075), (5, 3621045), (15, 1207015), (25, 724209), (75, 241403), (163, 111075), (489, 37025), (815, 22215), (1481, 12225), (2445, 7405), (4075, 4443)]