78821883

素因数分解:

$3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{4049}}^1$

素因数の和:4168

約数の個数: 32

約数和(自身を含む): 134784000

約数和(自身を除く): 55962117

約数列:

[1, 3, 7, 9, 21, 27, 63, 103, 189, 309, 721, 927, 2163, 2781, 4049, 6489, 12147, 19467, 28343, 36441, 85029, 109323, 255087, 417047, 765261, 1251141, 2919329, 3753423, 8757987, 11260269, 26273961, 78821883]

約数ペア:

[(1, 78821883), (3, 26273961), (7, 11260269), (9, 8757987), (21, 3753423), (27, 2919329), (63, 1251141), (103, 765261), (189, 417047), (309, 255087), (721, 109323), (927, 85029), (2163, 36441), (2781, 28343), (4049, 19467), (6489, 12147)]