20048021

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{491}}^1$

素因数の和:824

約数の個数: 16

約数和(自身を含む): 24245760

約数和(自身を除く): 4197739

約数列:

[1, 7, 19, 133, 307, 491, 2149, 3437, 5833, 9329, 40831, 65303, 150737, 1055159, 2864003, 20048021]

約数ペア:

[(1, 20048021), (7, 2864003), (19, 1055159), (133, 150737), (307, 65303), (491, 40831), (2149, 9329), (3437, 5833)]