81966969

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{68477}}^1$

素因数の和:68509

約数の個数: 24

約数和(自身を含む): 142434240

約数和(自身を除く): 60467271

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 68477, 205431, 479339, 616293, 1301063, 1438017, 3903189, 4314051, 9107441, 11709567, 27322323, 81966969]

約数ペア:

[(1, 81966969), (3, 27322323), (7, 11709567), (9, 9107441), (19, 4314051), (21, 3903189), (57, 1438017), (63, 1301063), (133, 616293), (171, 479339), (399, 205431), (1197, 68477)]