25871419

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:534

約数の個数: 16

約数和(自身を含む): 30241728

約数和(自身を除く): 4370309

約数列:

[1, 7, 73, 197, 257, 511, 1379, 1799, 14381, 18761, 50629, 100667, 131327, 354403, 3695917, 25871419]

約数ペア:

[(1, 25871419), (7, 3695917), (73, 354403), (197, 131327), (257, 100667), (511, 50629), (1379, 18761), (1799, 14381)]