21293752

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37489}}^1$

素因数の和:37566

約数の個数: 16

約数和(自身を含む): 40489200

約数和(自身を除く): 19195448

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37489, 74978, 149956, 299912, 2661719, 5323438, 10646876, 21293752]

約数ペア:

[(1, 21293752), (2, 10646876), (4, 5323438), (8, 2661719), (71, 299912), (142, 149956), (284, 74978), (568, 37489)]