21237335

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{5099}}^1$

素因数の和:5135

約数の個数: 24

約数和(自身を含む): 31395600

約数和(自身を除く): 10158265

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 4165, 5099, 25495, 35693, 86683, 178465, 249851, 433415, 606781, 1249255, 3033905, 4247467, 21237335]

約数ペア:

[(1, 21237335), (5, 4247467), (7, 3033905), (17, 1249255), (35, 606781), (49, 433415), (85, 249851), (119, 178465), (245, 86683), (595, 35693), (833, 25495), (4165, 5099)]