20188987

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3637}}^1$

素因数の和:3718

約数の個数: 16

約数和(自身を含む): 25262272

約数和(自身を除く): 5073285

約数列:

[1, 7, 13, 61, 91, 427, 793, 3637, 5551, 25459, 47281, 221857, 330967, 1552999, 2884141, 20188987]

約数ペア:

[(1, 20188987), (7, 2884141), (13, 1552999), (61, 330967), (91, 221857), (427, 47281), (793, 25459), (3637, 5551)]