28251223

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{167}}^1$

素因数の和:224

約数の個数: 32

約数和(自身を含む): 38384640

約数和(自身を除く): 10133417

約数列:

[1, 7, 11, 13, 77, 91, 143, 167, 169, 1001, 1169, 1183, 1837, 1859, 2171, 2197, 12859, 13013, 15197, 15379, 23881, 24167, 28223, 167167, 169169, 197561, 310453, 366899, 2173171, 2568293, 4035889, 28251223]

約数ペア:

[(1, 28251223), (7, 4035889), (11, 2568293), (13, 2173171), (77, 366899), (91, 310453), (143, 197561), (167, 169169), (169, 167167), (1001, 28223), (1169, 24167), (1183, 23881), (1837, 15379), (1859, 15197), (2171, 13013), (2197, 12859)]