21000337505

素因数分解:

$5^1\times 7^1\times {\mathrm{2797}}^1\times {\mathrm{214519}}^1$

素因数の和:217328

約数の個数: 16

約数和(自身を含む): 28810894080

約数和(自身を除く): 7810556575

約数列:

[1, 5, 7, 35, 2797, 13985, 19579, 97895, 214519, 1072595, 1501633, 7508165, 600009643, 3000048215, 4200067501, 21000337505]

約数ペア:

[(1, 21000337505), (5, 4200067501), (7, 3000048215), (35, 600009643), (2797, 7508165), (13985, 1501633), (19579, 1072595), (97895, 214519)]