21824649

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{409}}^1$

素因数の和:451

約数の個数: 54

約数和(自身を含む): 40406730

約数和(自身を除く): 18582081

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 121, 147, 231, 363, 409, 441, 539, 693, 847, 1089, 1227, 1617, 2541, 2863, 3681, 4499, 4851, 5929, 7623, 8589, 13497, 17787, 20041, 25767, 31493, 40491, 49489, 53361, 60123, 94479, 148467, 180369, 220451, 283437, 346423, 445401, 661353, 1039269, 1984059, 2424961, 3117807, 7274883, 21824649]

約数ペア:

[(1, 21824649), (3, 7274883), (7, 3117807), (9, 2424961), (11, 1984059), (21, 1039269), (33, 661353), (49, 445401), (63, 346423), (77, 283437), (99, 220451), (121, 180369), (147, 148467), (231, 94479), (363, 60123), (409, 53361), (441, 49489), (539, 40491), (693, 31493), (847, 25767), (1089, 20041), (1227, 17787), (1617, 13497), (2541, 8589), (2863, 7623), (3681, 5929), (4499, 4851)]