20817621

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2417}}^1$

素因数の和:2466

約数の個数: 32

約数和(自身を含む): 34819200

約数和(自身を除く): 14001579

約数列:

[1, 3, 9, 11, 27, 29, 33, 87, 99, 261, 297, 319, 783, 957, 2417, 2871, 7251, 8613, 21753, 26587, 65259, 70093, 79761, 210279, 239283, 630837, 717849, 771023, 1892511, 2313069, 6939207, 20817621]

約数ペア:

[(1, 20817621), (3, 6939207), (9, 2313069), (11, 1892511), (27, 771023), (29, 717849), (33, 630837), (87, 239283), (99, 210279), (261, 79761), (297, 70093), (319, 65259), (783, 26587), (957, 21753), (2417, 8613), (2871, 7251)]