18912095

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3499}}^1$

素因数の和:3574

約数の個数: 16

約数和(自身を含む): 24192000

約数和(自身を除く): 5279905

約数列:

[1, 5, 23, 47, 115, 235, 1081, 3499, 5405, 17495, 80477, 164453, 402385, 822265, 3782419, 18912095]

約数ペア:

[(1, 18912095), (5, 3782419), (23, 822265), (47, 402385), (115, 164453), (235, 80477), (1081, 17495), (3499, 5405)]