19938865

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{1123}}^1$

素因数の和:1248

約数の個数: 16

約数和(自身を含む): 24763968

約数和(自身を除く): 4825103

約数列:

[1, 5, 53, 67, 265, 335, 1123, 3551, 5615, 17755, 59519, 75241, 297595, 376205, 3987773, 19938865]

約数ペア:

[(1, 19938865), (5, 3987773), (53, 376205), (67, 297595), (265, 75241), (335, 59519), (1123, 17755), (3551, 5615)]