20120259

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8209}}^1$

素因数の和:8274

約数の個数: 16

約数和(自身を含む): 28899200

約数和(自身を除く): 8778941

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 8209, 24627, 155971, 352987, 467913, 1058961, 6706753, 20120259]

約数ペア:

[(1, 20120259), (3, 6706753), (19, 1058961), (43, 467913), (57, 352987), (129, 155971), (817, 24627), (2451, 8209)]