1900984905

素因数分解:

$3^2\times 5^1\times {\mathrm{42244109}}^1$

素因数の和:42244120

約数の個数: 12

約数和(自身を含む): 3295040580

約数和(自身を除く): 1394055675

約数列:

[1, 3, 5, 9, 15, 45, 42244109, 126732327, 211220545, 380196981, 633661635, 1900984905]

約数ペア:

[(1, 1900984905), (3, 633661635), (5, 380196981), (9, 211220545), (15, 126732327), (45, 42244109)]