19880181

素因数分解:

$3^3\times {\mathrm{167}}^1\times {\mathrm{4409}}^1$

素因数の和:4585

約数の個数: 16

約数和(自身を含む): 29635200

約数和(自身を除く): 9755019

約数列:

[1, 3, 9, 27, 167, 501, 1503, 4409, 4509, 13227, 39681, 119043, 736303, 2208909, 6626727, 19880181]

約数ペア:

[(1, 19880181), (3, 6626727), (9, 2208909), (27, 736303), (167, 119043), (501, 39681), (1503, 13227), (4409, 4509)]