81240579

素因数分解:

$3^2\times 7^3\times {\mathrm{26317}}^1$

素因数の和:26344

約数の個数: 24

約数和(自身を含む): 136853600

約数和(自身を除く): 55613021

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 26317, 78951, 184219, 236853, 552657, 1289533, 1657971, 3868599, 9026731, 11605797, 27080193, 81240579]

約数ペア:

[(1, 81240579), (3, 27080193), (7, 11605797), (9, 9026731), (21, 3868599), (49, 1657971), (63, 1289533), (147, 552657), (343, 236853), (441, 184219), (1029, 78951), (3087, 26317)]