18002257

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{479}}^1$

素因数の和:565

約数の個数: 24

約数和(自身を含む): 22982400

約数和(自身を除く): 4980143

約数列:

[1, 7, 13, 49, 59, 91, 413, 479, 637, 767, 2891, 3353, 5369, 6227, 23471, 28261, 37583, 43589, 197827, 305123, 367393, 1384789, 2571751, 18002257]

約数ペア:

[(1, 18002257), (7, 2571751), (13, 1384789), (49, 367393), (59, 305123), (91, 197827), (413, 43589), (479, 37583), (637, 28261), (767, 23471), (2891, 6227), (3353, 5369)]