81644913

素因数分解:

$3^2\times 7^1\times {\mathrm{881}}^1\times {\mathrm{1471}}^1$

素因数の和:2365

約数の個数: 24

約数和(自身を含む): 135023616

約数和(自身を除く): 53378703

約数列:

[1, 3, 7, 9, 21, 63, 881, 1471, 2643, 4413, 6167, 7929, 10297, 13239, 18501, 30891, 55503, 92673, 1295951, 3887853, 9071657, 11663559, 27214971, 81644913]

約数ペア:

[(1, 81644913), (3, 27214971), (7, 11663559), (9, 9071657), (21, 3887853), (63, 1295951), (881, 92673), (1471, 55503), (2643, 30891), (4413, 18501), (6167, 13239), (7929, 10297)]