21000916547

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{271}}^1\times {\mathrm{743}}^1$

素因数の和:1211

約数の個数: 32

約数和(自身を含む): 23254511616

約数和(自身を除く): 2253595069

約数列:

[1, 13, 71, 113, 271, 743, 923, 1469, 3523, 8023, 9659, 19241, 30623, 52753, 83959, 104299, 201353, 250133, 398099, 685789, 1091467, 2174233, 2617589, 5961089, 14296063, 22752889, 28265029, 77494157, 185848819, 295787557, 1615455119, 21000916547]

約数ペア:

[(1, 21000916547), (13, 1615455119), (71, 295787557), (113, 185848819), (271, 77494157), (743, 28265029), (923, 22752889), (1469, 14296063), (3523, 5961089), (8023, 2617589), (9659, 2174233), (19241, 1091467), (30623, 685789), (52753, 398099), (83959, 250133), (104299, 201353)]