39962979

素因数分解:

$3^2\times 7^2\times {\mathrm{90619}}^1$

素因数の和:90639

約数の個数: 18

約数和(自身を含む): 67149420

約数和(自身を除く): 27186441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 90619, 271857, 634333, 815571, 1902999, 4440331, 5708997, 13320993, 39962979]

約数ペア:

[(1, 39962979), (3, 13320993), (7, 5708997), (9, 4440331), (21, 1902999), (49, 815571), (63, 634333), (147, 271857), (441, 90619)]