25237947

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1471}}^1$

素因数の和:1543

約数の個数: 32

約数和(自身を含む): 41451520

約数和(自身を除く): 16213573

約数列:

[1, 3, 7, 19, 21, 43, 57, 129, 133, 301, 399, 817, 903, 1471, 2451, 4413, 5719, 10297, 17157, 27949, 30891, 63253, 83847, 189759, 195643, 442771, 586929, 1201807, 1328313, 3605421, 8412649, 25237947]

約数ペア:

[(1, 25237947), (3, 8412649), (7, 3605421), (19, 1328313), (21, 1201807), (43, 586929), (57, 442771), (129, 195643), (133, 189759), (301, 83847), (399, 63253), (817, 30891), (903, 27949), (1471, 17157), (2451, 10297), (4413, 5719)]