81791554

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{10247}}^1$

素因数の和:10569

約数の個数: 16

約数和(自身を含む): 132568128

約数和(自身を除く): 50776574

約数列:

[1, 2, 13, 26, 307, 614, 3991, 7982, 10247, 20494, 133211, 266422, 3145829, 6291658, 40895777, 81791554]

約数ペア:

[(1, 81791554), (2, 40895777), (13, 6291658), (26, 3145829), (307, 266422), (614, 133211), (3991, 20494), (7982, 10247)]