18438211

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:570

約数の個数: 16

約数和(自身を含む): 20966400

約数和(自身を除く): 2528189

約数列:

[1, 11, 31, 139, 341, 389, 1529, 4279, 4309, 12059, 47399, 54071, 132649, 594781, 1676201, 18438211]

約数ペア:

[(1, 18438211), (11, 1676201), (31, 594781), (139, 132649), (341, 54071), (389, 47399), (1529, 12059), (4279, 4309)]