20613138

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1987}}^1$

素因数の和:2031

約数の個数: 64

約数和(自身を含む): 53437440

約数和(自身を除く): 32824302

約数列:

[1, 2, 3, 6, 7, 13, 14, 19, 21, 26, 38, 39, 42, 57, 78, 91, 114, 133, 182, 247, 266, 273, 399, 494, 546, 741, 798, 1482, 1729, 1987, 3458, 3974, 5187, 5961, 10374, 11922, 13909, 25831, 27818, 37753, 41727, 51662, 75506, 77493, 83454, 113259, 154986, 180817, 226518, 264271, 361634, 490789, 528542, 542451, 792813, 981578, 1084902, 1472367, 1585626, 2944734, 3435523, 6871046, 10306569, 20613138]

約数ペア:

[(1, 20613138), (2, 10306569), (3, 6871046), (6, 3435523), (7, 2944734), (13, 1585626), (14, 1472367), (19, 1084902), (21, 981578), (26, 792813), (38, 542451), (39, 528542), (42, 490789), (57, 361634), (78, 264271), (91, 226518), (114, 180817), (133, 154986), (182, 113259), (247, 83454), (266, 77493), (273, 75506), (399, 51662), (494, 41727), (546, 37753), (741, 27818), (798, 25831), (1482, 13909), (1729, 11922), (1987, 10374), (3458, 5961), (3974, 5187)]