20912793

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{1087}}^1$

素因数の和:1165

約数の個数: 24

約数和(自身を含む): 31256064

約数和(自身を除く): 10343271

約数列:

[1, 3, 11, 33, 53, 121, 159, 363, 583, 1087, 1749, 3261, 6413, 11957, 19239, 35871, 57611, 131527, 172833, 394581, 633721, 1901163, 6970931, 20912793]

約数ペア:

[(1, 20912793), (3, 6970931), (11, 1901163), (33, 633721), (53, 394581), (121, 172833), (159, 131527), (363, 57611), (583, 35871), (1087, 19239), (1749, 11957), (3261, 6413)]