21769891

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6619}}^1$

素因数の和:6666

約数の個数: 16

約数和(自身を含む): 26691840

約数和(自身を除く): 4921949

約数列:

[1, 11, 13, 23, 143, 253, 299, 3289, 6619, 72809, 86047, 152237, 946517, 1674607, 1979081, 21769891]

約数ペア:

[(1, 21769891), (11, 1979081), (13, 1674607), (23, 946517), (143, 152237), (253, 86047), (299, 72809), (3289, 6619)]