19971843

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{9337}}^1$

素因数の和:9394

約数の個数: 16

約数和(自身を含む): 28686336

約数和(自身を除く): 8714493

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 9337, 28011, 214751, 289447, 644253, 868341, 6657281, 19971843]

約数ペア:

[(1, 19971843), (3, 6657281), (23, 868341), (31, 644253), (69, 289447), (93, 214751), (713, 28011), (2139, 9337)]