16638225

素因数分解:

$3^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{1361}}^1$

素因数の和:1537

約数の個数: 24

約数和(自身を含む): 27697632

約数和(自身を除く): 11059407

約数列:

[1, 3, 5, 15, 25, 75, 163, 489, 815, 1361, 2445, 4075, 4083, 6805, 12225, 20415, 34025, 102075, 221843, 665529, 1109215, 3327645, 5546075, 16638225]

約数ペア:

[(1, 16638225), (3, 5546075), (5, 3327645), (15, 1109215), (25, 665529), (75, 221843), (163, 102075), (489, 34025), (815, 20415), (1361, 12225), (2445, 6805), (4075, 4083)]