51028887

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 88510464

約数和(自身を除く): 37481577

約数列:

[1, 3, 7, 13, 21, 39, 41, 47, 91, 97, 123, 141, 273, 287, 291, 329, 533, 611, 679, 861, 987, 1261, 1599, 1833, 1927, 2037, 3731, 3783, 3977, 4277, 4559, 5781, 8827, 11193, 11931, 12831, 13489, 13677, 25051, 26481, 27839, 31913, 40467, 51701, 59267, 75153, 83517, 95739, 155103, 175357, 177801, 186919, 361907, 414869, 526071, 560757, 1085721, 1244607, 1308433, 2429947, 3925299, 7289841, 17009629, 51028887]

約数ペア:

[(1, 51028887), (3, 17009629), (7, 7289841), (13, 3925299), (21, 2429947), (39, 1308433), (41, 1244607), (47, 1085721), (91, 560757), (97, 526071), (123, 414869), (141, 361907), (273, 186919), (287, 177801), (291, 175357), (329, 155103), (533, 95739), (611, 83517), (679, 75153), (861, 59267), (987, 51701), (1261, 40467), (1599, 31913), (1833, 27839), (1927, 26481), (2037, 25051), (3731, 13677), (3783, 13489), (3977, 12831), (4277, 11931), (4559, 11193), (5781, 8827)]