21289331810

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73411489}}^1$

素因数の和:73411525

約数の個数: 16

約数和(自身を含む): 39642204600

約数和(自身を除く): 18352872790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 73411489, 146822978, 367057445, 734114890, 2128933181, 4257866362, 10644665905, 21289331810]

約数ペア:

[(1, 21289331810), (2, 10644665905), (5, 4257866362), (10, 2128933181), (29, 734114890), (58, 367057445), (145, 146822978), (290, 73411489)]