21959050

素因数分解:

$2^1\times 5^2\times {\mathrm{389}}^1\times {\mathrm{1129}}^1$

素因数の和:1530

約数の個数: 24

約数和(自身を含む): 40985100

約数和(自身を除く): 19026050

約数列:

[1, 2, 5, 10, 25, 50, 389, 778, 1129, 1945, 2258, 3890, 5645, 9725, 11290, 19450, 28225, 56450, 439181, 878362, 2195905, 4391810, 10979525, 21959050]

約数ペア:

[(1, 21959050), (2, 10979525), (5, 4391810), (10, 2195905), (25, 878362), (50, 439181), (389, 56450), (778, 28225), (1129, 19450), (1945, 11290), (2258, 9725), (3890, 5645)]