1640813913

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{2129}}^1\times {\mathrm{4507}}^1$

素因数の和:6661

約数の個数: 24

約数和(自身を含む): 2496530400

約数和(自身を除く): 855716487

約数列:

[1, 3, 9, 19, 57, 171, 2129, 4507, 6387, 13521, 19161, 40451, 40563, 85633, 121353, 256899, 364059, 770697, 9595403, 28786209, 86358627, 182312657, 546937971, 1640813913]

約数ペア:

[(1, 1640813913), (3, 546937971), (9, 182312657), (19, 86358627), (57, 28786209), (171, 9595403), (2129, 770697), (4507, 364059), (6387, 256899), (13521, 121353), (19161, 85633), (40451, 40563)]