12981999

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{557}}^1$

素因数の和:1034

約数の個数: 16

約数和(自身を含む): 18400608

約数和(自身を除く): 5418609

約数列:

[1, 3, 17, 51, 457, 557, 1371, 1671, 7769, 9469, 23307, 28407, 254549, 763647, 4327333, 12981999]

約数ペア:

[(1, 12981999), (3, 4327333), (17, 763647), (51, 254549), (457, 28407), (557, 23307), (1371, 9469), (1671, 7769)]