19701275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2311}}^1$

素因数の和:2363

約数の個数: 24

約数和(自身を含む): 27522048

約数和(自身を除く): 7820773

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 341, 775, 1705, 2311, 8525, 11555, 25421, 57775, 71641, 127105, 358205, 635525, 788051, 1791025, 3940255, 19701275]

約数ペア:

[(1, 19701275), (5, 3940255), (11, 1791025), (25, 788051), (31, 635525), (55, 358205), (155, 127105), (275, 71641), (341, 57775), (775, 25421), (1705, 11555), (2311, 8525)]