18580518

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:498

約数の個数: 72

約数和(自身を含む): 46683000

約数和(自身を除く): 28102482

約数列:

[1, 2, 3, 6, 9, 11, 18, 19, 22, 33, 38, 57, 66, 99, 114, 121, 171, 198, 209, 242, 342, 363, 418, 449, 627, 726, 898, 1089, 1254, 1347, 1881, 2178, 2299, 2694, 3762, 4041, 4598, 4939, 6897, 8082, 8531, 9878, 13794, 14817, 17062, 20691, 25593, 29634, 41382, 44451, 51186, 54329, 76779, 88902, 93841, 108658, 153558, 162987, 187682, 281523, 325974, 488961, 563046, 844569, 977922, 1032251, 1689138, 2064502, 3096753, 6193506, 9290259, 18580518]

約数ペア:

[(1, 18580518), (2, 9290259), (3, 6193506), (6, 3096753), (9, 2064502), (11, 1689138), (18, 1032251), (19, 977922), (22, 844569), (33, 563046), (38, 488961), (57, 325974), (66, 281523), (99, 187682), (114, 162987), (121, 153558), (171, 108658), (198, 93841), (209, 88902), (242, 76779), (342, 54329), (363, 51186), (418, 44451), (449, 41382), (627, 29634), (726, 25593), (898, 20691), (1089, 17062), (1254, 14817), (1347, 13794), (1881, 9878), (2178, 8531), (2299, 8082), (2694, 6897), (3762, 4939), (4041, 4598)]