21643732

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{5527}}^1$

素因数の和:5631

約数の個数: 24

約数和(自身を含む): 41791680

約数和(自身を除く): 20147948

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 5527, 11054, 22108, 60797, 121594, 243188, 491903, 983806, 1967612, 5410933, 10821866, 21643732]

約数ペア:

[(1, 21643732), (2, 10821866), (4, 5410933), (11, 1967612), (22, 983806), (44, 491903), (89, 243188), (178, 121594), (356, 60797), (979, 22108), (1958, 11054), (3916, 5527)]