21081016

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{239557}}^1$

素因数の和:239574

約数の個数: 16

約数和(自身を含む): 43120440

約数和(自身を除く): 22039424

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 239557, 479114, 958228, 1916456, 2635127, 5270254, 10540508, 21081016]

約数ペア:

[(1, 21081016), (2, 10540508), (4, 5270254), (8, 2635127), (11, 1916456), (22, 958228), (44, 479114), (88, 239557)]