20787641

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{547}}^1$

素因数の和:704

約数の個数: 16

約数和(自身を含む): 24462720

約数和(自身を除く): 3675079

約数列:

[1, 7, 61, 89, 427, 547, 623, 3829, 5429, 33367, 38003, 48683, 233569, 340781, 2969663, 20787641]

約数ペア:

[(1, 20787641), (7, 2969663), (61, 340781), (89, 233569), (427, 48683), (547, 38003), (623, 33367), (3829, 5429)]