21074840

素因数分解:

$2^3\times 5^1\times {\mathrm{526871}}^1$

素因数の和:526882

約数の個数: 16

約数和(自身を含む): 47418480

約数和(自身を除く): 26343640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 526871, 1053742, 2107484, 2634355, 4214968, 5268710, 10537420, 21074840]

約数ペア:

[(1, 21074840), (2, 10537420), (4, 5268710), (5, 4214968), (8, 2634355), (10, 2107484), (20, 1053742), (40, 526871)]