18840565

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{947}}^1$

素因数の和:1148

約数の個数: 16

約数和(自身を含む): 23753088

約数和(自身を除く): 4912523

約数列:

[1, 5, 23, 115, 173, 865, 947, 3979, 4735, 19895, 21781, 108905, 163831, 819155, 3768113, 18840565]

約数ペア:

[(1, 18840565), (5, 3768113), (23, 819155), (115, 163831), (173, 108905), (865, 21781), (947, 19895), (3979, 4735)]