20181655

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{1237}}^1$

素因数の和:1506

約数の個数: 16

約数和(自身を含む): 26205984

約数和(自身を除く): 6024329

約数列:

[1, 5, 13, 65, 251, 1237, 1255, 3263, 6185, 16081, 16315, 80405, 310487, 1552435, 4036331, 20181655]

約数ペア:

[(1, 20181655), (5, 4036331), (13, 1552435), (65, 310487), (251, 80405), (1237, 16315), (1255, 16081), (3263, 6185)]