21081159

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2917}}^1$

素因数の和:3007

約数の個数: 24

約数和(自身を含む): 33685392

約数和(自身を除く): 12604233

約数列:

[1, 3, 9, 11, 33, 73, 99, 219, 657, 803, 2409, 2917, 7227, 8751, 26253, 32087, 96261, 212941, 288783, 638823, 1916469, 2342351, 7027053, 21081159]

約数ペア:

[(1, 21081159), (3, 7027053), (9, 2342351), (11, 1916469), (33, 638823), (73, 288783), (99, 212941), (219, 96261), (657, 32087), (803, 26253), (2409, 8751), (2917, 7227)]