21605367

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{8101}}^1$

素因数の和:8238

約数の個数: 16

約数和(自身を含む): 33185792

約数和(自身を除く): 11580425

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 8101, 24303, 56707, 170121, 1028827, 3086481, 7201789, 21605367]

約数ペア:

[(1, 21605367), (3, 7201789), (7, 3086481), (21, 1028827), (127, 170121), (381, 56707), (889, 24303), (2667, 8101)]