20749492024

素因数分解:

$2^3\times {\mathrm{21001}}^1\times {\mathrm{123503}}^1$

素因数の和:144510

約数の個数: 16

約数和(自身を含む): 38907465120

約数和(自身を除く): 18157973096

約数列:

[1, 2, 4, 8, 21001, 42002, 84004, 123503, 168008, 247006, 494012, 988024, 2593686503, 5187373006, 10374746012, 20749492024]

約数ペア:

[(1, 20749492024), (2, 10374746012), (4, 5187373006), (8, 2593686503), (21001, 988024), (42002, 494012), (84004, 247006), (123503, 168008)]