18971678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{11813}}^1$

素因数の和:11899

約数の個数: 16

約数和(自身を含む): 31472496

約数和(自身を除く): 12500818

約数列:

[1, 2, 11, 22, 73, 146, 803, 1606, 11813, 23626, 129943, 259886, 862349, 1724698, 9485839, 18971678]

約数ペア:

[(1, 18971678), (2, 9485839), (11, 1724698), (22, 862349), (73, 259886), (146, 129943), (803, 23626), (1606, 11813)]