18480553

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{653}}^1$

素因数の和:984

約数の個数: 16

約数和(自身を含む): 22853376

約数和(自身を除く): 4372823

約数列:

[1, 7, 13, 91, 311, 653, 2177, 4043, 4571, 8489, 28301, 59423, 203083, 1421581, 2640079, 18480553]

約数ペア:

[(1, 18480553), (7, 2640079), (13, 1421581), (91, 203083), (311, 59423), (653, 28301), (2177, 8489), (4043, 4571)]