21490908838

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{26993}}^1$

素因数の和:27121

約数の個数: 64

約数和(自身を含む): 39882015360

約数和(自身を除く): 18391106522

約数列:

[1, 2, 7, 14, 29, 37, 53, 58, 74, 106, 203, 259, 371, 406, 518, 742, 1073, 1537, 1961, 2146, 3074, 3922, 7511, 10759, 13727, 15022, 21518, 26993, 27454, 53986, 56869, 113738, 188951, 377902, 398083, 782797, 796166, 998741, 1430629, 1565594, 1997482, 2861258, 5479579, 6991187, 10014403, 10959158, 13982374, 20028806, 28963489, 41488241, 52933273, 57926978, 82976482, 105866546, 202744423, 290417687, 370532911, 405488846, 580835374, 741065822, 1535064917, 3070129834, 10745454419, 21490908838]

約数ペア:

[(1, 21490908838), (2, 10745454419), (7, 3070129834), (14, 1535064917), (29, 741065822), (37, 580835374), (53, 405488846), (58, 370532911), (74, 290417687), (106, 202744423), (203, 105866546), (259, 82976482), (371, 57926978), (406, 52933273), (518, 41488241), (742, 28963489), (1073, 20028806), (1537, 13982374), (1961, 10959158), (2146, 10014403), (3074, 6991187), (3922, 5479579), (7511, 2861258), (10759, 1997482), (13727, 1565594), (15022, 1430629), (21518, 998741), (26993, 796166), (27454, 782797), (53986, 398083), (56869, 377902), (113738, 188951)]