25425281

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1999}}^1$

素因数の和:2108

約数の個数: 16

約数和(自身を含む): 30720000

約数和(自身を除く): 5294719

約数列:

[1, 7, 23, 79, 161, 553, 1817, 1999, 12719, 13993, 45977, 157921, 321839, 1105447, 3632183, 25425281]

約数ペア:

[(1, 25425281), (7, 3632183), (23, 1105447), (79, 321839), (161, 157921), (553, 45977), (1817, 13993), (1999, 12719)]