1820003913

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{523}}^1\times {\mathrm{607}}^1$

素因数の和:1163

約数の個数: 72

約数和(自身を含む): 3305073408

約数和(自身を除く): 1485069495

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 523, 607, 637, 819, 1569, 1821, 1911, 3661, 4249, 4707, 5463, 5733, 6799, 7891, 10983, 12747, 20397, 23673, 25627, 29743, 32949, 38241, 47593, 55237, 61191, 71019, 76881, 89229, 142779, 165711, 230643, 267687, 317461, 333151, 386659, 428337, 497133, 952383, 999453, 1159977, 2222227, 2857149, 2998359, 3479931, 4126993, 6666681, 12380979, 15555589, 20000043, 28888951, 37142937, 46666767, 86666853, 140000301, 202222657, 260000559, 606667971, 1820003913]

約数ペア:

[(1, 1820003913), (3, 606667971), (7, 260000559), (9, 202222657), (13, 140000301), (21, 86666853), (39, 46666767), (49, 37142937), (63, 28888951), (91, 20000043), (117, 15555589), (147, 12380979), (273, 6666681), (441, 4126993), (523, 3479931), (607, 2998359), (637, 2857149), (819, 2222227), (1569, 1159977), (1821, 999453), (1911, 952383), (3661, 497133), (4249, 428337), (4707, 386659), (5463, 333151), (5733, 317461), (6799, 267687), (7891, 230643), (10983, 165711), (12747, 142779), (20397, 89229), (23673, 76881), (25627, 71019), (29743, 61191), (32949, 55237), (38241, 47593)]