21491676

素因数分解:

$2^2\times 3^3\times {\mathrm{198997}}^1$

素因数の和:199010

約数の個数: 24

約数和(自身を含む): 55719440

約数和(自身を除く): 34227764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 198997, 397994, 596991, 795988, 1193982, 1790973, 2387964, 3581946, 5372919, 7163892, 10745838, 21491676]

約数ペア:

[(1, 21491676), (2, 10745838), (3, 7163892), (4, 5372919), (6, 3581946), (9, 2387964), (12, 1790973), (18, 1193982), (27, 795988), (36, 596991), (54, 397994), (108, 198997)]