21293468

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10711}}^1$

素因数の和:10793

約数の個数: 24

約数和(自身を含む): 43190784

約数和(自身を除く): 21897316

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10711, 21422, 42844, 74977, 149954, 299908, 760481, 1520962, 3041924, 5323367, 10646734, 21293468]

約数ペア:

[(1, 21293468), (2, 10646734), (4, 5323367), (7, 3041924), (14, 1520962), (28, 760481), (71, 299908), (142, 149954), (284, 74977), (497, 42844), (994, 21422), (1988, 10711)]