81290451

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{491}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 123275520

約数和(自身を除く): 41985069

約数列:

[1, 3, 11, 29, 33, 87, 173, 319, 491, 519, 957, 1473, 1903, 5017, 5401, 5709, 14239, 15051, 16203, 42717, 55187, 84943, 156629, 165561, 254829, 469887, 934373, 2463347, 2803119, 7390041, 27096817, 81290451]

約数ペア:

[(1, 81290451), (3, 27096817), (11, 7390041), (29, 2803119), (33, 2463347), (87, 934373), (173, 469887), (319, 254829), (491, 165561), (519, 156629), (957, 84943), (1473, 55187), (1903, 42717), (5017, 16203), (5401, 15051), (5709, 14239)]