18293121

素因数分解:

$3^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{419}}^1$

素因数の和:456

約数の個数: 60

約数和(自身を含む): 34760880

約数和(自身を除く): 16467759

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 81, 99, 147, 189, 231, 297, 419, 441, 539, 567, 693, 891, 1257, 1323, 1617, 2079, 2933, 3771, 3969, 4609, 4851, 6237, 8799, 11313, 13827, 14553, 20531, 26397, 32263, 33939, 41481, 43659, 61593, 79191, 96789, 124443, 184779, 225841, 237573, 290367, 373329, 554337, 677523, 871101, 1663011, 2032569, 2613303, 6097707, 18293121]

約数ペア:

[(1, 18293121), (3, 6097707), (7, 2613303), (9, 2032569), (11, 1663011), (21, 871101), (27, 677523), (33, 554337), (49, 373329), (63, 290367), (77, 237573), (81, 225841), (99, 184779), (147, 124443), (189, 96789), (231, 79191), (297, 61593), (419, 43659), (441, 41481), (539, 33939), (567, 32263), (693, 26397), (891, 20531), (1257, 14553), (1323, 13827), (1617, 11313), (2079, 8799), (2933, 6237), (3771, 4851), (3969, 4609)]