21859123

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4931}}^1$

素因数の和:4986

約数の個数: 16

約数和(自身を含む): 26514432

約数和(自身を除く): 4655309

約数列:

[1, 11, 13, 31, 143, 341, 403, 4433, 4931, 54241, 64103, 152861, 705133, 1681471, 1987193, 21859123]

約数ペア:

[(1, 21859123), (11, 1987193), (13, 1681471), (31, 705133), (143, 152861), (341, 64103), (403, 54241), (4433, 4931)]