20615217

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{31667}}^1$

素因数の和:31708

約数の個数: 16

約数和(自身を含む): 32428032

約数和(自身を除く): 11812815

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 31667, 95001, 221669, 665007, 981677, 2945031, 6871739, 20615217]

約数ペア:

[(1, 20615217), (3, 6871739), (7, 2945031), (21, 981677), (31, 665007), (93, 221669), (217, 95001), (651, 31667)]