21161090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{124477}}^1$

素因数の和:124501

約数の個数: 16

約数和(自身を含む): 40330872

約数和(自身を除く): 19169782

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 124477, 248954, 622385, 1244770, 2116109, 4232218, 10580545, 21161090]

約数ペア:

[(1, 21161090), (2, 10580545), (5, 4232218), (10, 2116109), (17, 1244770), (34, 622385), (85, 248954), (170, 124477)]