13128237

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{2657}}^1$

素因数の和:2730

約数の個数: 20

約数和(自身を含む): 19940316

約数和(自身を除く): 6812079

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 2657, 4941, 7971, 23913, 71739, 162077, 215217, 486231, 1458693, 4376079, 13128237]

約数ペア:

[(1, 13128237), (3, 4376079), (9, 1458693), (27, 486231), (61, 215217), (81, 162077), (183, 71739), (549, 23913), (1647, 7971), (2657, 4941)]