17990485

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{2143}}^1$

素因数の和:2244

約数の個数: 16

約数和(自身を含む): 22846464

約数和(自身を除く): 4855979

約数列:

[1, 5, 23, 73, 115, 365, 1679, 2143, 8395, 10715, 49289, 156439, 246445, 782195, 3598097, 17990485]

約数ペア:

[(1, 17990485), (5, 3598097), (23, 782195), (73, 246445), (115, 156439), (365, 49289), (1679, 10715), (2143, 8395)]