18931718

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{709}}^1$

素因数の和:816

約数の個数: 24

約数和(自身を含む): 31183200

約数和(自身を除く): 12251482

約数列:

[1, 2, 13, 26, 79, 158, 169, 338, 709, 1027, 1418, 2054, 9217, 13351, 18434, 26702, 56011, 112022, 119821, 239642, 728143, 1456286, 9465859, 18931718]

約数ペア:

[(1, 18931718), (2, 9465859), (13, 1456286), (26, 728143), (79, 239642), (158, 119821), (169, 112022), (338, 56011), (709, 26702), (1027, 18434), (1418, 13351), (2054, 9217)]