20973967

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{881}}^1$

素因数の和:1086

約数の個数: 16

約数和(自身を含む): 25401600

約数和(自身を除く): 4427633

約数列:

[1, 7, 19, 133, 179, 881, 1253, 3401, 6167, 16739, 23807, 117173, 157699, 1103893, 2996281, 20973967]

約数ペア:

[(1, 20973967), (7, 2996281), (19, 1103893), (133, 157699), (179, 117173), (881, 23807), (1253, 16739), (3401, 6167)]