21037415

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{5051}}^1$

素因数の和:5087

約数の個数: 24

約数和(自身を含む): 31100112

約数和(自身を除く): 10062697

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 4165, 5051, 25255, 35357, 85867, 176785, 247499, 429335, 601069, 1237495, 3005345, 4207483, 21037415]

約数ペア:

[(1, 21037415), (5, 4207483), (7, 3005345), (17, 1237495), (35, 601069), (49, 429335), (85, 247499), (119, 176785), (245, 85867), (595, 35357), (833, 25255), (4165, 5051)]