21266135

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 29376000

約数和(自身を除く): 8109865

約数列:

[1, 5, 11, 29, 55, 67, 145, 199, 319, 335, 737, 995, 1595, 1943, 2189, 3685, 5771, 9715, 10945, 13333, 21373, 28855, 63481, 66665, 106865, 146663, 317405, 386657, 733315, 1933285, 4253227, 21266135]

約数ペア:

[(1, 21266135), (5, 4253227), (11, 1933285), (29, 733315), (55, 386657), (67, 317405), (145, 146663), (199, 106865), (319, 66665), (335, 63481), (737, 28855), (995, 21373), (1595, 13333), (1943, 10945), (2189, 9715), (3685, 5771)]