18694285

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{1091}}^1$

素因数の和:1268

約数の個数: 16

約数和(自身を含む): 23587200

約数和(自身を除く): 4892915

約数列:

[1, 5, 23, 115, 149, 745, 1091, 3427, 5455, 17135, 25093, 125465, 162559, 812795, 3738857, 18694285]

約数ペア:

[(1, 18694285), (5, 3738857), (23, 812795), (115, 162559), (149, 125465), (745, 25093), (1091, 17135), (3427, 5455)]