25728417

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19991}}^1$

素因数の和:20021

約数の個数: 24

約数和(自身を含む): 43662528

約数和(自身を除く): 17934111

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 19991, 59973, 179919, 219901, 259883, 659703, 779649, 1979109, 2338947, 2858713, 8576139, 25728417]

約数ペア:

[(1, 25728417), (3, 8576139), (9, 2858713), (11, 2338947), (13, 1979109), (33, 779649), (39, 659703), (99, 259883), (117, 219901), (143, 179919), (429, 59973), (1287, 19991)]