68997987

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:557

約数の個数: 40

約数和(自身を含む): 109771200

約数和(自身を除く): 40773213

約数列:

[1, 3, 9, 19, 27, 57, 81, 107, 171, 321, 419, 513, 963, 1257, 1539, 2033, 2889, 3771, 6099, 7961, 8667, 11313, 18297, 23883, 33939, 44833, 54891, 71649, 134499, 164673, 214947, 403497, 644841, 851827, 1210491, 2555481, 3631473, 7666443, 22999329, 68997987]

約数ペア:

[(1, 68997987), (3, 22999329), (9, 7666443), (19, 3631473), (27, 2555481), (57, 1210491), (81, 851827), (107, 644841), (171, 403497), (321, 214947), (419, 164673), (513, 134499), (963, 71649), (1257, 54891), (1539, 44833), (2033, 33939), (2889, 23883), (3771, 18297), (6099, 11313), (7961, 8667)]