18111745

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{313}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 22246272

約数和(自身を除く): 4134527

約数列:

[1, 5, 71, 163, 313, 355, 815, 1565, 11573, 22223, 51019, 57865, 111115, 255095, 3622349, 18111745]

約数ペア:

[(1, 18111745), (5, 3622349), (71, 255095), (163, 111115), (313, 57865), (355, 51019), (815, 22223), (1565, 11573)]