20556165

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1429}}^1$

素因数の和:1581

約数の個数: 32

約数和(自身を含む): 37889280

約数和(自身を除く): 17333115

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 137, 411, 685, 959, 1429, 2055, 2877, 4287, 4795, 7145, 10003, 14385, 21435, 30009, 50015, 150045, 195773, 587319, 978865, 1370411, 2936595, 4111233, 6852055, 20556165]

約数ペア:

[(1, 20556165), (3, 6852055), (5, 4111233), (7, 2936595), (15, 1370411), (21, 978865), (35, 587319), (105, 195773), (137, 150045), (411, 50015), (685, 30009), (959, 21435), (1429, 14385), (2055, 10003), (2877, 7145), (4287, 4795)]