21382840

素因数分解:

$2^3\times 5^1\times {\mathrm{534571}}^1$

素因数の和:534582

約数の個数: 16

約数和(自身を含む): 48111480

約数和(自身を除く): 26728640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 534571, 1069142, 2138284, 2672855, 4276568, 5345710, 10691420, 21382840]

約数ペア:

[(1, 21382840), (2, 10691420), (4, 5345710), (5, 4276568), (8, 2672855), (10, 2138284), (20, 1069142), (40, 534571)]