21885584

素因数分解:

$2^4\times 7^1\times {\mathrm{195407}}^1$

素因数の和:195422

約数の個数: 20

約数和(自身を含む): 48461184

約数和(自身を除く): 26575600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 195407, 390814, 781628, 1367849, 1563256, 2735698, 3126512, 5471396, 10942792, 21885584]

約数ペア:

[(1, 21885584), (2, 10942792), (4, 5471396), (7, 3126512), (8, 2735698), (14, 1563256), (16, 1367849), (28, 781628), (56, 390814), (112, 195407)]