18157217

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:177

約数の個数: 24

約数和(自身を含む): 21314664

約数和(自身を除く): 3157447

約数列:

[1, 13, 19, 53, 73, 247, 361, 689, 949, 1007, 1387, 3869, 4693, 13091, 18031, 19133, 26353, 50297, 73511, 248729, 342589, 955643, 1396709, 18157217]

約数ペア:

[(1, 18157217), (13, 1396709), (19, 955643), (53, 342589), (73, 248729), (247, 73511), (361, 50297), (689, 26353), (949, 19133), (1007, 18031), (1387, 13091), (3869, 4693)]