20123997621

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{1193}}^1$

素因数の和:1340

約数の個数: 96

約数和(自身を含む): 34261113600

約数和(自身を除く): 14137115979

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 97, 147, 169, 273, 291, 343, 507, 637, 679, 1029, 1183, 1193, 1261, 1911, 2037, 3549, 3579, 3783, 4459, 4753, 8281, 8351, 8827, 13377, 14259, 15509, 16393, 24843, 25053, 26481, 33271, 46527, 49179, 57967, 58457, 61789, 99813, 108563, 114751, 115721, 173901, 175371, 185367, 201617, 325689, 344253, 347163, 409199, 432523, 604851, 759941, 803257, 810047, 1227597, 1297569, 1411319, 1504373, 2279823, 2409771, 2430141, 4233957, 4513119, 5319587, 5622799, 5670329, 9879233, 10530611, 15958761, 16868397, 17010987, 19556849, 29637699, 31591833, 39692303, 58670547, 69154631, 73714277, 119076909, 136897943, 207463893, 221142831, 410693829, 515999939, 958285601, 1547999817, 2874856803, 6707999207, 20123997621]

約数ペア:

[(1, 20123997621), (3, 6707999207), (7, 2874856803), (13, 1547999817), (21, 958285601), (39, 515999939), (49, 410693829), (91, 221142831), (97, 207463893), (147, 136897943), (169, 119076909), (273, 73714277), (291, 69154631), (343, 58670547), (507, 39692303), (637, 31591833), (679, 29637699), (1029, 19556849), (1183, 17010987), (1193, 16868397), (1261, 15958761), (1911, 10530611), (2037, 9879233), (3549, 5670329), (3579, 5622799), (3783, 5319587), (4459, 4513119), (4753, 4233957), (8281, 2430141), (8351, 2409771), (8827, 2279823), (13377, 1504373), (14259, 1411319), (15509, 1297569), (16393, 1227597), (24843, 810047), (25053, 803257), (26481, 759941), (33271, 604851), (46527, 432523), (49179, 409199), (57967, 347163), (58457, 344253), (61789, 325689), (99813, 201617), (108563, 185367), (114751, 175371), (115721, 173901)]