18998260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22091}}^1$

素因数の和:22143

約数の個数: 24

約数和(自身を含む): 40826016

約数和(自身を除く): 21827756

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22091, 44182, 88364, 110455, 220910, 441820, 949913, 1899826, 3799652, 4749565, 9499130, 18998260]

約数ペア:

[(1, 18998260), (2, 9499130), (4, 4749565), (5, 3799652), (10, 1899826), (20, 949913), (43, 441820), (86, 220910), (172, 110455), (215, 88364), (430, 44182), (860, 22091)]