205029

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:145

約数の個数: 24

約数和(自身を含む): 343200

約数和(自身を除く): 138171

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 109, 171, 209, 327, 627, 981, 1199, 1881, 2071, 3597, 6213, 10791, 18639, 22781, 68343, 205029]

約数ペア:

[(1, 205029), (3, 68343), (9, 22781), (11, 18639), (19, 10791), (33, 6213), (57, 3597), (99, 2071), (109, 1881), (171, 1199), (209, 981), (327, 627)]