18898709

素因数分解:

${\mathrm{23}}^1\times {\mathrm{71}}^2\times {\mathrm{163}}^1$

素因数の和:328

約数の個数: 12

約数和(自身を含む): 20124768

約数和(自身を除く): 1226059

約数列:

[1, 23, 71, 163, 1633, 3749, 5041, 11573, 115943, 266179, 821683, 18898709]

約数ペア:

[(1, 18898709), (23, 821683), (71, 266179), (163, 115943), (1633, 11573), (3749, 5041)]