20500029

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{3907}}^1$

素因数の和:3977

約数の個数: 24

約数和(自身を含む): 32920992

約数和(自身を除く): 12420963

約数列:

[1, 3, 9, 11, 33, 53, 99, 159, 477, 583, 1749, 3907, 5247, 11721, 35163, 42977, 128931, 207071, 386793, 621213, 1863639, 2277781, 6833343, 20500029]

約数ペア:

[(1, 20500029), (3, 6833343), (9, 2277781), (11, 1863639), (33, 621213), (53, 386793), (99, 207071), (159, 128931), (477, 42977), (583, 35163), (1749, 11721), (3907, 5247)]