3994557

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:197

約数の個数: 32

約数和(自身を含む): 6435072

約数和(自身を除く): 2440515

約数列:

[1, 3, 7, 21, 37, 53, 97, 111, 159, 259, 291, 371, 679, 777, 1113, 1961, 2037, 3589, 5141, 5883, 10767, 13727, 15423, 25123, 35987, 41181, 75369, 107961, 190217, 570651, 1331519, 3994557]

約数ペア:

[(1, 3994557), (3, 1331519), (7, 570651), (21, 190217), (37, 107961), (53, 75369), (97, 41181), (111, 35987), (159, 25123), (259, 15423), (291, 13727), (371, 10767), (679, 5883), (777, 5141), (1113, 3589), (1961, 2037)]