21908050

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^2\times {\mathrm{521}}^1$

素因数の和:591

約数の個数: 36

約数和(自身を含む): 42283566

約数和(自身を除く): 20375516

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 521, 725, 841, 1042, 1450, 1682, 2605, 4205, 5210, 8410, 13025, 15109, 21025, 26050, 30218, 42050, 75545, 151090, 377725, 438161, 755450, 876322, 2190805, 4381610, 10954025, 21908050]

約数ペア:

[(1, 21908050), (2, 10954025), (5, 4381610), (10, 2190805), (25, 876322), (29, 755450), (50, 438161), (58, 377725), (145, 151090), (290, 75545), (521, 42050), (725, 30218), (841, 26050), (1042, 21025), (1450, 15109), (1682, 13025), (2605, 8410), (4205, 5210)]