51219091

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{28921}}^1$

素因数の和:28962

約数の個数: 16

約数和(自身を含む): 66636288

約数和(自身を除く): 15417197

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 28921, 202447, 318131, 665183, 2226917, 4656281, 7317013, 51219091]

約数ペア:

[(1, 51219091), (7, 7317013), (11, 4656281), (23, 2226917), (77, 665183), (161, 318131), (253, 202447), (1771, 28921)]