21721167475

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4280033}}^1$

素因数の和:4280079

約数の個数: 24

約数和(自身を含む): 31843452960

約数和(自身を除く): 10122285485

約数列:

[1, 5, 7, 25, 29, 35, 145, 175, 203, 725, 1015, 5075, 4280033, 21400165, 29960231, 107000825, 124120957, 149801155, 620604785, 749005775, 868846699, 3103023925, 4344233495, 21721167475]

約数ペア:

[(1, 21721167475), (5, 4344233495), (7, 3103023925), (25, 868846699), (29, 749005775), (35, 620604785), (145, 149801155), (175, 124120957), (203, 107000825), (725, 29960231), (1015, 21400165), (5075, 4280033)]