21105864405

素因数分解:

$3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{653}}^1\times {\mathrm{2731}}^1$

素因数の和:3658

約数の個数: 48

約数和(自身を含む): 36792302976

約数和(自身を除く): 15686438571

約数列:

[1, 3, 5, 9, 15, 45, 263, 653, 789, 1315, 1959, 2367, 2731, 3265, 3945, 5877, 8193, 9795, 11835, 13655, 24579, 29385, 40965, 122895, 171739, 515217, 718253, 858695, 1545651, 1783343, 2154759, 2576085, 3591265, 5350029, 6464277, 7728255, 8916715, 10773795, 16050087, 26750145, 32321385, 80250435, 469019209, 1407057627, 2345096045, 4221172881, 7035288135, 21105864405]

約数ペア:

[(1, 21105864405), (3, 7035288135), (5, 4221172881), (9, 2345096045), (15, 1407057627), (45, 469019209), (263, 80250435), (653, 32321385), (789, 26750145), (1315, 16050087), (1959, 10773795), (2367, 8916715), (2731, 7728255), (3265, 6464277), (3945, 5350029), (5877, 3591265), (8193, 2576085), (9795, 2154759), (11835, 1783343), (13655, 1545651), (24579, 858695), (29385, 718253), (40965, 515217), (122895, 171739)]