21279464

素因数分解:

$2^3\times {\mathrm{677}}^1\times {\mathrm{3929}}^1$

素因数の和:4612

約数の個数: 16

約数和(自身を含む): 39968100

約数和(自身を除く): 18688636

約数列:

[1, 2, 4, 8, 677, 1354, 2708, 3929, 5416, 7858, 15716, 31432, 2659933, 5319866, 10639732, 21279464]

約数ペア:

[(1, 21279464), (2, 10639732), (4, 5319866), (8, 2659933), (677, 31432), (1354, 15716), (2708, 7858), (3929, 5416)]