20451347

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{2153}}^1$

素因数の和:2242

約数の個数: 16

約数和(自身を含む): 24814080

約数和(自身を除く): 4362733

約数列:

[1, 7, 23, 59, 161, 413, 1357, 2153, 9499, 15071, 49519, 127027, 346633, 889189, 2921621, 20451347]

約数ペア:

[(1, 20451347), (7, 2921621), (23, 889189), (59, 346633), (161, 127027), (413, 49519), (1357, 15071), (2153, 9499)]