2538747

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 3875040

約数和(自身を除く): 1336293

約数列:

[1, 3, 9, 29, 71, 87, 137, 213, 261, 411, 639, 1233, 2059, 3973, 6177, 9727, 11919, 18531, 29181, 35757, 87543, 282083, 846249, 2538747]

約数ペア:

[(1, 2538747), (3, 846249), (9, 282083), (29, 87543), (71, 35757), (87, 29181), (137, 18531), (213, 11919), (261, 9727), (411, 6177), (639, 3973), (1233, 2059)]