21000252655

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1181}}^1\times {\mathrm{1289}}^1$

素因数の和:2595

約数の個数: 32

約数和(自身を含む): 26348198400

約数和(自身を除く): 5347945745

約数列:

[1, 5, 31, 89, 155, 445, 1181, 1289, 2759, 5905, 6445, 13795, 36611, 39959, 105109, 114721, 183055, 199795, 525545, 573605, 1522309, 3258379, 3556351, 7611545, 16291895, 17781755, 47191579, 135485501, 235957895, 677427505, 4200050531, 21000252655]

約数ペア:

[(1, 21000252655), (5, 4200050531), (31, 677427505), (89, 235957895), (155, 135485501), (445, 47191579), (1181, 17781755), (1289, 16291895), (2759, 7611545), (5905, 3556351), (6445, 3258379), (13795, 1522309), (36611, 573605), (39959, 525545), (105109, 199795), (114721, 183055)]