21438712

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{857}}^1$

素因数の和:975

約数の個数: 32

約数和(自身を含む): 41698800

約数和(自身を除く): 20260088

約数列:

[1, 2, 4, 8, 53, 59, 106, 118, 212, 236, 424, 472, 857, 1714, 3127, 3428, 6254, 6856, 12508, 25016, 45421, 50563, 90842, 101126, 181684, 202252, 363368, 404504, 2679839, 5359678, 10719356, 21438712]

約数ペア:

[(1, 21438712), (2, 10719356), (4, 5359678), (8, 2679839), (53, 404504), (59, 363368), (106, 202252), (118, 181684), (212, 101126), (236, 90842), (424, 50563), (472, 45421), (857, 25016), (1714, 12508), (3127, 6856), (3428, 6254)]