20389258

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{6997}}^1$

素因数の和:7077

約数の個数: 16

約数和(自身を含む): 32246784

約数和(自身を除く): 11857526

約数列:

[1, 2, 31, 47, 62, 94, 1457, 2914, 6997, 13994, 216907, 328859, 433814, 657718, 10194629, 20389258]

約数ペア:

[(1, 20389258), (2, 10194629), (31, 657718), (47, 433814), (62, 328859), (94, 216907), (1457, 13994), (2914, 6997)]