20666156

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{8293}}^1$

素因数の和:8393

約数の個数: 24

約数和(自身を含む): 41801760

約数和(自身を除く): 21135604

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 8293, 16586, 33172, 58051, 116102, 232204, 738077, 1476154, 2952308, 5166539, 10333078, 20666156]

約数ペア:

[(1, 20666156), (2, 10333078), (4, 5166539), (7, 2952308), (14, 1476154), (28, 738077), (89, 232204), (178, 116102), (356, 58051), (623, 33172), (1246, 16586), (2492, 8293)]