1651689

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{743}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 2708160

約数和(自身を除く): 1056471

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 743, 2223, 2229, 6687, 9659, 14117, 28977, 42351, 86931, 127053, 183521, 550563, 1651689]

約数ペア:

[(1, 1651689), (3, 550563), (9, 183521), (13, 127053), (19, 86931), (39, 42351), (57, 28977), (117, 14117), (171, 9659), (247, 6687), (741, 2229), (743, 2223)]