18916028

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{5557}}^1$

素因数の和:5621

約数の個数: 24

約数和(自身を含む): 35482272

約数和(自身を除く): 16566244

約数列:

[1, 2, 4, 23, 37, 46, 74, 92, 148, 851, 1702, 3404, 5557, 11114, 22228, 127811, 205609, 255622, 411218, 511244, 822436, 4729007, 9458014, 18916028]

約数ペア:

[(1, 18916028), (2, 9458014), (4, 4729007), (23, 822436), (37, 511244), (46, 411218), (74, 255622), (92, 205609), (148, 127811), (851, 22228), (1702, 11114), (3404, 5557)]