20812242

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:399

約数の個数: 48

約数和(自身を含む): 46347840

約数和(自身を除く): 25535598

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 109, 121, 218, 242, 263, 327, 363, 526, 654, 726, 789, 1199, 1578, 2398, 2893, 3597, 5786, 7194, 8679, 13189, 17358, 26378, 28667, 31823, 39567, 57334, 63646, 79134, 86001, 95469, 172002, 190938, 315337, 630674, 946011, 1892022, 3468707, 6937414, 10406121, 20812242]

約数ペア:

[(1, 20812242), (2, 10406121), (3, 6937414), (6, 3468707), (11, 1892022), (22, 946011), (33, 630674), (66, 315337), (109, 190938), (121, 172002), (218, 95469), (242, 86001), (263, 79134), (327, 63646), (363, 57334), (526, 39567), (654, 31823), (726, 28667), (789, 26378), (1199, 17358), (1578, 13189), (2398, 8679), (2893, 7194), (3597, 5786)]