20811213

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7159}}^1$

素因数の和:7201

約数の個数: 24

約数和(自身を含む): 33508800

約数和(自身を除く): 12697587

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 7159, 21477, 64431, 121703, 136021, 365109, 408063, 1095327, 1224189, 2312357, 6937071, 20811213]

約数ペア:

[(1, 20811213), (3, 6937071), (9, 2312357), (17, 1224189), (19, 1095327), (51, 408063), (57, 365109), (153, 136021), (171, 121703), (323, 64431), (969, 21477), (2907, 7159)]