19877727

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{9293}}^1$

素因数の和:9350

約数の個数: 16

約数和(自身を含む): 28551168

約数和(自身を除く): 8673441

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 9293, 27879, 213739, 288083, 641217, 864249, 6625909, 19877727]

約数ペア:

[(1, 19877727), (3, 6625909), (23, 864249), (31, 641217), (69, 288083), (93, 213739), (713, 27879), (2139, 9293)]