19421405

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:484

約数の個数: 16

約数和(自身を含む): 23760000

約数和(自身を除く): 4338595

約数列:

[1, 5, 131, 149, 199, 655, 745, 995, 19519, 26069, 29651, 97595, 130345, 148255, 3884281, 19421405]

約数ペア:

[(1, 19421405), (5, 3884281), (131, 148255), (149, 130345), (199, 97595), (655, 29651), (745, 26069), (995, 19519)]