28212273

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:438

約数の個数: 32

約数和(自身を含む): 43718400

約数和(自身を除く): 15506127

約数列:

[1, 3, 9, 27, 29, 87, 137, 261, 263, 411, 783, 789, 1233, 2367, 3699, 3973, 7101, 7627, 11919, 22881, 35757, 36031, 68643, 107271, 108093, 205929, 324279, 972837, 1044899, 3134697, 9404091, 28212273]

約数ペア:

[(1, 28212273), (3, 9404091), (9, 3134697), (27, 1044899), (29, 972837), (87, 324279), (137, 205929), (261, 108093), (263, 107271), (411, 68643), (783, 36031), (789, 35757), (1233, 22881), (2367, 11919), (3699, 7627), (3973, 7101)]