12820923

素因数分解:

$3^6\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:470

約数の個数: 28

約数和(自身を含む): 19717720

約数和(自身を除く): 6896797

約数列:

[1, 3, 9, 27, 43, 81, 129, 243, 387, 409, 729, 1161, 1227, 3483, 3681, 10449, 11043, 17587, 31347, 33129, 52761, 99387, 158283, 298161, 474849, 1424547, 4273641, 12820923]

約数ペア:

[(1, 12820923), (3, 4273641), (9, 1424547), (27, 474849), (43, 298161), (81, 158283), (129, 99387), (243, 52761), (387, 33129), (409, 31347), (729, 17587), (1161, 11043), (1227, 10449), (3483, 3681)]