27921243

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{28289}}^1$

素因数の和:28346

約数の個数: 16

約数和(自身を含む): 43453440

約数和(自身を除く): 15532197

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 28289, 84867, 198023, 594069, 1329583, 3988749, 9307081, 27921243]

約数ペア:

[(1, 27921243), (3, 9307081), (7, 3988749), (21, 1329583), (47, 594069), (141, 198023), (329, 84867), (987, 28289)]