21423928

素因数分解:

$2^3\times {\mathrm{1229}}^1\times {\mathrm{2179}}^1$

素因数の和:3414

約数の個数: 16

約数和(自身を含む): 40221000

約数和(自身を除く): 18797072

約数列:

[1, 2, 4, 8, 1229, 2179, 2458, 4358, 4916, 8716, 9832, 17432, 2677991, 5355982, 10711964, 21423928]

約数ペア:

[(1, 21423928), (2, 10711964), (4, 5355982), (8, 2677991), (1229, 17432), (2179, 9832), (2458, 8716), (4358, 4916)]