9989847

素因数分解:

$3^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{617}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 16582176

約数和(自身を除く): 6592329

約数列:

[1, 3, 7, 9, 21, 63, 257, 617, 771, 1799, 1851, 2313, 4319, 5397, 5553, 12957, 16191, 38871, 158569, 475707, 1109983, 1427121, 3329949, 9989847]

約数ペア:

[(1, 9989847), (3, 3329949), (7, 1427121), (9, 1109983), (21, 475707), (63, 158569), (257, 38871), (617, 16191), (771, 12957), (1799, 5553), (1851, 5397), (2313, 4319)]