23218209

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 43748640

約数和(自身を除く): 20530431

約数列:

[1, 3, 7, 9, 17, 19, 21, 49, 51, 57, 63, 119, 133, 147, 153, 163, 171, 323, 357, 399, 441, 489, 833, 931, 969, 1071, 1141, 1197, 1467, 2261, 2499, 2771, 2793, 2907, 3097, 3423, 6783, 7497, 7987, 8313, 8379, 9291, 10269, 15827, 19397, 20349, 21679, 23961, 24939, 27873, 47481, 52649, 58191, 65037, 71883, 135779, 142443, 151753, 157947, 174573, 195111, 368543, 407337, 455259, 473841, 1105629, 1222011, 1365777, 2579801, 3316887, 7739403, 23218209]

約数ペア:

[(1, 23218209), (3, 7739403), (7, 3316887), (9, 2579801), (17, 1365777), (19, 1222011), (21, 1105629), (49, 473841), (51, 455259), (57, 407337), (63, 368543), (119, 195111), (133, 174573), (147, 157947), (153, 151753), (163, 142443), (171, 135779), (323, 71883), (357, 65037), (399, 58191), (441, 52649), (489, 47481), (833, 27873), (931, 24939), (969, 23961), (1071, 21679), (1141, 20349), (1197, 19397), (1467, 15827), (2261, 10269), (2499, 9291), (2771, 8379), (2793, 8313), (2907, 7987), (3097, 7497), (3423, 6783)]