20972577

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{7759}}^1$

素因数の和:7832

約数の個数: 16

約数和(自身を含む): 30170880

約数和(自身を除く): 9198303

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 7759, 23277, 131903, 395709, 411227, 1233681, 6990859, 20972577]

約数ペア:

[(1, 20972577), (3, 6990859), (17, 1233681), (51, 411227), (53, 395709), (159, 131903), (901, 23277), (2703, 7759)]