20706075

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7079}}^1$

素因数の和:7108

約数の個数: 36

約数和(自身を含む): 39945360

約数和(自身を除く): 19239285

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 7079, 21237, 35395, 63711, 92027, 106185, 176975, 276081, 318555, 460135, 530925, 828243, 1380405, 1592775, 2300675, 4141215, 6902025, 20706075]

約数ペア:

[(1, 20706075), (3, 6902025), (5, 4141215), (9, 2300675), (13, 1592775), (15, 1380405), (25, 828243), (39, 530925), (45, 460135), (65, 318555), (75, 276081), (117, 176975), (195, 106185), (225, 92027), (325, 63711), (585, 35395), (975, 21237), (2925, 7079)]