17866989

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5351}}^1$

素因数の和:5417

約数の個数: 24

約数和(自身を含む): 30056832

約数和(自身を除く): 12189843

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 5351, 16053, 37457, 48159, 112371, 283603, 337113, 850809, 1985221, 2552427, 5955663, 17866989]

約数ペア:

[(1, 17866989), (3, 5955663), (7, 2552427), (9, 1985221), (21, 850809), (53, 337113), (63, 283603), (159, 112371), (371, 48159), (477, 37457), (1113, 16053), (3339, 5351)]