18972291

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{4723}}^1$

素因数の和:4842

約数の個数: 16

約数和(自身を含む): 27512576

約数和(自身を除く): 8540285

約数列:

[1, 3, 13, 39, 103, 309, 1339, 4017, 4723, 14169, 61399, 184197, 486469, 1459407, 6324097, 18972291]

約数ペア:

[(1, 18972291), (3, 6324097), (13, 1459407), (39, 486469), (103, 184197), (309, 61399), (1339, 14169), (4017, 4723)]