42815721

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{57781}}^1$

素因数の和:57816

約数の個数: 16

約数和(自身を含む): 64715840

約数和(自身を除く): 21900119

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 57781, 173343, 751153, 1097839, 2253459, 3293517, 14271907, 42815721]

約数ペア:

[(1, 42815721), (3, 14271907), (13, 3293517), (19, 2253459), (39, 1097839), (57, 751153), (247, 173343), (741, 57781)]