21029304895

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{463}}^1\times {\mathrm{4079}}^1$

素因数の和:4695

約数の個数: 32

約数和(自身を含む): 26988318720

約数和(自身を除く): 5959013825

約数列:

[1, 5, 17, 85, 131, 463, 655, 2227, 2315, 4079, 7871, 11135, 20395, 39355, 60653, 69343, 303265, 346715, 534349, 1031101, 1888577, 2671745, 5155505, 9083933, 9442885, 32105809, 45419665, 160529045, 247403587, 1237017935, 4205860979, 21029304895]

約数ペア:

[(1, 21029304895), (5, 4205860979), (17, 1237017935), (85, 247403587), (131, 160529045), (463, 45419665), (655, 32105809), (2227, 9442885), (2315, 9083933), (4079, 5155505), (7871, 2671745), (11135, 1888577), (20395, 1031101), (39355, 534349), (60653, 346715), (69343, 303265)]