21392943

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1061}}^1$

素因数の和:1135

約数の個数: 32

約数和(自身を含む): 34255872

約数和(自身を除く): 12862929

約数列:

[1, 3, 11, 13, 33, 39, 47, 141, 143, 429, 517, 611, 1061, 1551, 1833, 3183, 6721, 11671, 13793, 20163, 35013, 41379, 49867, 149601, 151723, 455169, 548537, 648271, 1645611, 1944813, 7130981, 21392943]

約数ペア:

[(1, 21392943), (3, 7130981), (11, 1944813), (13, 1645611), (33, 648271), (39, 548537), (47, 455169), (141, 151723), (143, 149601), (429, 49867), (517, 41379), (611, 35013), (1061, 20163), (1551, 13793), (1833, 11671), (3183, 6721)]