17778663

素因数分解:

$3^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{863}}^1$

素因数の和:988

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 12634137

約数列:

[1, 3, 7, 9, 21, 27, 63, 109, 189, 327, 763, 863, 981, 2289, 2589, 2943, 6041, 6867, 7767, 18123, 20601, 23301, 54369, 94067, 163107, 282201, 658469, 846603, 1975407, 2539809, 5926221, 17778663]

約数ペア:

[(1, 17778663), (3, 5926221), (7, 2539809), (9, 1975407), (21, 846603), (27, 658469), (63, 282201), (109, 163107), (189, 94067), (327, 54369), (763, 23301), (863, 20601), (981, 18123), (2289, 7767), (2589, 6867), (2943, 6041)]