20357857

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{367}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 23369472

約数和(自身を除く): 3011615

約数列:

[1, 13, 17, 221, 251, 367, 3263, 4267, 4771, 6239, 55471, 81107, 92117, 1197521, 1565989, 20357857]

約数ペア:

[(1, 20357857), (13, 1565989), (17, 1197521), (221, 92117), (251, 81107), (367, 55471), (3263, 6239), (4267, 4771)]