51181221

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{187477}}^1$

素因数の和:187500

約数の個数: 16

約数和(自身を含む): 83990144

約数和(自身を除く): 32808923

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 187477, 562431, 1312339, 2437201, 3937017, 7311603, 17060407, 51181221]

約数ペア:

[(1, 51181221), (3, 17060407), (7, 7311603), (13, 3937017), (21, 2437201), (39, 1312339), (91, 562431), (273, 187477)]