18977648

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13327}}^1$

素因数の和:13424

約数の個数: 20

約数和(自身を含む): 37185120

約数和(自身を除く): 18207472

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13327, 26654, 53308, 106616, 213232, 1186103, 2372206, 4744412, 9488824, 18977648]

約数ペア:

[(1, 18977648), (2, 9488824), (4, 4744412), (8, 2372206), (16, 1186103), (89, 213232), (178, 106616), (356, 53308), (712, 26654), (1424, 13327)]