20268465

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1409}}^1$

素因数の和:1561

約数の個数: 32

約数和(自身を含む): 37359360

約数和(自身を除く): 17090895

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 137, 411, 685, 959, 1409, 2055, 2877, 4227, 4795, 7045, 9863, 14385, 21135, 29589, 49315, 147945, 193033, 579099, 965165, 1351231, 2895495, 4053693, 6756155, 20268465]

約数ペア:

[(1, 20268465), (3, 6756155), (5, 4053693), (7, 2895495), (15, 1351231), (21, 965165), (35, 579099), (105, 193033), (137, 147945), (411, 49315), (685, 29589), (959, 21135), (1409, 14385), (2055, 9863), (2877, 7045), (4227, 4795)]