28816263

素因数分解:

$3^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{947}}^1$

素因数の和:993

約数の個数: 48

約数和(自身を含む): 51874560

約数和(自身を除く): 23058297

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 69, 147, 161, 189, 207, 441, 483, 621, 947, 1127, 1323, 1449, 2841, 3381, 4347, 6629, 8523, 10143, 19887, 21781, 25569, 30429, 46403, 59661, 65343, 139209, 152467, 178983, 196029, 417627, 457401, 588087, 1067269, 1252881, 1372203, 3201807, 4116609, 9605421, 28816263]

約数ペア:

[(1, 28816263), (3, 9605421), (7, 4116609), (9, 3201807), (21, 1372203), (23, 1252881), (27, 1067269), (49, 588087), (63, 457401), (69, 417627), (147, 196029), (161, 178983), (189, 152467), (207, 139209), (441, 65343), (483, 59661), (621, 46403), (947, 30429), (1127, 25569), (1323, 21781), (1449, 19887), (2841, 10143), (3381, 8523), (4347, 6629)]