2840721

素因数分解:

$3^1\times {\mathrm{13}}^3\times {\mathrm{431}}^1$

素因数の和:473

約数の個数: 16

約数和(自身を含む): 4112640

約数和(自身を除く): 1271919

約数列:

[1, 3, 13, 39, 169, 431, 507, 1293, 2197, 5603, 6591, 16809, 72839, 218517, 946907, 2840721]

約数ペア:

[(1, 2840721), (3, 946907), (13, 218517), (39, 72839), (169, 16809), (431, 6591), (507, 5603), (1293, 2197)]