16505881

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{653}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 19839744

約数和(自身を除く): 3333863

約数列:

[1, 7, 23, 157, 161, 653, 1099, 3611, 4571, 15019, 25277, 102521, 105133, 717647, 2357983, 16505881]

約数ペア:

[(1, 16505881), (7, 2357983), (23, 717647), (157, 105133), (161, 102521), (653, 25277), (1099, 15019), (3611, 4571)]