20828583

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{8867}}^1$

素因数の和:8908

約数の個数: 20

約数和(自身を含む): 32190840

約数和(自身を除く): 11362257

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 8867, 26601, 79803, 239409, 257143, 718227, 771429, 2314287, 6942861, 20828583]

約数ペア:

[(1, 20828583), (3, 6942861), (9, 2314287), (27, 771429), (29, 718227), (81, 257143), (87, 239409), (261, 79803), (783, 26601), (2349, 8867)]