21230011

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{647}}^1$

素因数の和:834

約数の個数: 16

約数和(自身を含む): 24572160

約数和(自身を除く): 3342149

約数列:

[1, 11, 19, 157, 209, 647, 1727, 2983, 7117, 12293, 32813, 101579, 135223, 1117369, 1930001, 21230011]

約数ペア:

[(1, 21230011), (11, 1930001), (19, 1117369), (157, 135223), (209, 101579), (647, 32813), (1727, 12293), (2983, 7117)]