21523105

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{13327}}^1$

素因数の和:13368

約数の個数: 16

約数和(自身を含む): 28788480

約数和(自身を除く): 7265375

約数列:

[1, 5, 17, 19, 85, 95, 323, 1615, 13327, 66635, 226559, 253213, 1132795, 1266065, 4304621, 21523105]

約数ペア:

[(1, 21523105), (5, 4304621), (17, 1266065), (19, 1132795), (85, 253213), (95, 226559), (323, 66635), (1615, 13327)]