21770045

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{3919}}^1$

素因数の和:4036

約数の個数: 16

約数和(自身を含む): 28788480

約数和(自身を除く): 7018435

約数列:

[1, 5, 11, 55, 101, 505, 1111, 3919, 5555, 19595, 43109, 215545, 395819, 1979095, 4354009, 21770045]

約数ペア:

[(1, 21770045), (5, 4354009), (11, 1979095), (55, 395819), (101, 215545), (505, 43109), (1111, 19595), (3919, 5555)]