221639510

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{203339}}^1$

素因数の和:203455

約数の個数: 16

約数和(自身を含む): 402613200

約数和(自身を除く): 180973690

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 203339, 406678, 1016695, 2033390, 22163951, 44327902, 110819755, 221639510]

約数ペア:

[(1, 221639510), (2, 110819755), (5, 44327902), (10, 22163951), (109, 2033390), (218, 1016695), (545, 406678), (1090, 203339)]