18707905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{2269}}^1$

素因数の和:2388

約数の個数: 16

約数和(自身を含む): 24025680

約数和(自身を除く): 5317775

約数列:

[1, 5, 17, 85, 97, 485, 1649, 2269, 8245, 11345, 38573, 192865, 220093, 1100465, 3741581, 18707905]

約数ペア:

[(1, 18707905), (5, 3741581), (17, 1100465), (85, 220093), (97, 192865), (485, 38573), (1649, 11345), (2269, 8245)]