20847589

素因数分解:

$7^2\times {\mathrm{401}}^1\times {\mathrm{1061}}^1$

素因数の和:1476

約数の個数: 12

約数和(自身を含む): 24334668

約数和(自身を除く): 3487079

約数列:

[1, 7, 49, 401, 1061, 2807, 7427, 19649, 51989, 425461, 2978227, 20847589]

約数ペア:

[(1, 20847589), (7, 2978227), (49, 425461), (401, 51989), (1061, 19649), (2807, 7427)]