8721561

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 13039488

約数和(自身を除く): 4317927

約数列:

[1, 3, 17, 41, 43, 51, 97, 123, 129, 291, 697, 731, 1649, 1763, 2091, 2193, 3977, 4171, 4947, 5289, 11931, 12513, 29971, 67609, 70907, 89913, 171011, 202827, 212721, 513033, 2907187, 8721561]

約数ペア:

[(1, 8721561), (3, 2907187), (17, 513033), (41, 212721), (43, 202827), (51, 171011), (97, 89913), (123, 70907), (129, 67609), (291, 29971), (697, 12513), (731, 11931), (1649, 5289), (1763, 4947), (2091, 4171), (2193, 3977)]