18390897967

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1\times {\mathrm{1223}}^1$

素因数の和:1683

約数の個数: 32

約数和(自身を含む): 20598157440

約数和(自身を除く): 2207259473

約数列:

[1, 13, 41, 89, 317, 533, 1157, 1223, 3649, 4121, 12997, 15899, 28213, 47437, 50143, 108847, 168961, 366769, 387691, 651859, 1156733, 1415011, 4462727, 5039983, 15037529, 15895331, 34504499, 58015451, 206639303, 448558487, 1414684459, 18390897967]

約数ペア:

[(1, 18390897967), (13, 1414684459), (41, 448558487), (89, 206639303), (317, 58015451), (533, 34504499), (1157, 15895331), (1223, 15037529), (3649, 5039983), (4121, 4462727), (12997, 1415011), (15899, 1156733), (28213, 651859), (47437, 387691), (50143, 366769), (108847, 168961)]