21139833

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{49277}}^1$

素因数の和:49304

約数の個数: 16

約数和(自身を含む): 33114816

約数和(自身を除く): 11974983

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 49277, 147831, 542047, 640601, 1626141, 1921803, 7046611, 21139833]

約数ペア:

[(1, 21139833), (3, 7046611), (11, 1921803), (13, 1626141), (33, 640601), (39, 542047), (143, 147831), (429, 49277)]