1640981587

素因数分解:

$7^1\times {\mathrm{131}}^1\times {\mathrm{907}}^1\times {\mathrm{1973}}^1$

素因数の和:3018

約数の個数: 16

約数和(自身を含む): 1892765952

約数和(自身を除く): 251784365

約数列:

[1, 7, 131, 907, 917, 1973, 6349, 13811, 118817, 258463, 831719, 1789511, 1809241, 12526577, 234425941, 1640981587]

約数ペア:

[(1, 1640981587), (7, 234425941), (131, 12526577), (907, 1809241), (917, 1789511), (1973, 831719), (6349, 258463), (13811, 118817)]