18805516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{709}}^1$

素因数の和:1081

約数の個数: 24

約数和(自身を含む): 34790000

約数和(自身を除く): 15984484

約数列:

[1, 2, 4, 19, 38, 76, 349, 698, 709, 1396, 1418, 2836, 6631, 13262, 13471, 26524, 26942, 53884, 247441, 494882, 989764, 4701379, 9402758, 18805516]

約数ペア:

[(1, 18805516), (2, 9402758), (4, 4701379), (19, 989764), (38, 494882), (76, 247441), (349, 53884), (698, 26942), (709, 26524), (1396, 13471), (1418, 13262), (2836, 6631)]