20685378

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3137}}^1$

素因数の和:3306

約数の個数: 32

約数和(自身を含む): 47597184

約数和(自身を除く): 26911806

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 157, 314, 471, 942, 1099, 2198, 3137, 3297, 6274, 6594, 9411, 18822, 21959, 43918, 65877, 131754, 492509, 985018, 1477527, 2955054, 3447563, 6895126, 10342689, 20685378]

約数ペア:

[(1, 20685378), (2, 10342689), (3, 6895126), (6, 3447563), (7, 2955054), (14, 1477527), (21, 985018), (42, 492509), (157, 131754), (314, 65877), (471, 43918), (942, 21959), (1099, 18822), (2198, 9411), (3137, 6594), (3297, 6274)]