67856817

素因数分解:

$3^1\times 7^2\times {\mathrm{463}}^1\times {\mathrm{997}}^1$

素因数の和:1477

約数の個数: 24

約数和(自身を含む): 105580416

約数和(自身を除く): 37723599

約数列:

[1, 3, 7, 21, 49, 147, 463, 997, 1389, 2991, 3241, 6979, 9723, 20937, 22687, 48853, 68061, 146559, 461611, 1384833, 3231277, 9693831, 22618939, 67856817]

約数ペア:

[(1, 67856817), (3, 22618939), (7, 9693831), (21, 3231277), (49, 1384833), (147, 461611), (463, 146559), (997, 68061), (1389, 48853), (2991, 22687), (3241, 20937), (6979, 9723)]