199931121

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{277}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 323814400

約数和(自身を除く): 123883279

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 199, 277, 279, 403, 597, 831, 1209, 1791, 2493, 2587, 3601, 3627, 6169, 7761, 8587, 10803, 18507, 23283, 25761, 32409, 55123, 55521, 77283, 80197, 111631, 165369, 240591, 334893, 496107, 716599, 721773, 1004679, 1708813, 2149797, 5126439, 6449391, 15379317, 22214569, 66643707, 199931121]

約数ペア:

[(1, 199931121), (3, 66643707), (9, 22214569), (13, 15379317), (31, 6449391), (39, 5126439), (93, 2149797), (117, 1708813), (199, 1004679), (277, 721773), (279, 716599), (403, 496107), (597, 334893), (831, 240591), (1209, 165369), (1791, 111631), (2493, 80197), (2587, 77283), (3601, 55521), (3627, 55123), (6169, 32409), (7761, 25761), (8587, 23283), (10803, 18507)]