18906478

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{1031}}^1$

素因数の和:1259

約数の個数: 16

約数和(自身を含む): 29090016

約数和(自身を除く): 10183538

約数列:

[1, 2, 53, 106, 173, 346, 1031, 2062, 9169, 18338, 54643, 109286, 178363, 356726, 9453239, 18906478]

約数ペア:

[(1, 18906478), (2, 9453239), (53, 356726), (106, 178363), (173, 109286), (346, 54643), (1031, 18338), (2062, 9169)]