7718481

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 11591424

約数和(自身を除く): 3872943

約数列:

[1, 3, 9, 47, 71, 141, 213, 257, 423, 639, 771, 2313, 3337, 10011, 12079, 18247, 30033, 36237, 54741, 108711, 164223, 857609, 2572827, 7718481]

約数ペア:

[(1, 7718481), (3, 2572827), (9, 857609), (47, 164223), (71, 108711), (141, 54741), (213, 36237), (257, 30033), (423, 18247), (639, 12079), (771, 10011), (2313, 3337)]