191912721

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{63907}}^1$

素因数の和:63941

約数の個数: 32

約数和(自身を含む): 343569408

約数和(自身を除く): 151656687

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 63907, 191721, 447349, 702977, 830791, 1342047, 2108931, 2492373, 4920839, 5815537, 9138701, 14762517, 17446611, 27416103, 63970907, 191912721]

約数ペア:

[(1, 191912721), (3, 63970907), (7, 27416103), (11, 17446611), (13, 14762517), (21, 9138701), (33, 5815537), (39, 4920839), (77, 2492373), (91, 2108931), (143, 1342047), (231, 830791), (273, 702977), (429, 447349), (1001, 191721), (3003, 63907)]