21435590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{194869}}^1$

素因数の和:194887

約数の個数: 16

約数和(自身を含む): 42091920

約数和(自身を除く): 20656330

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 194869, 389738, 974345, 1948690, 2143559, 4287118, 10717795, 21435590]

約数ペア:

[(1, 21435590), (2, 10717795), (5, 4287118), (10, 2143559), (11, 1948690), (22, 974345), (55, 389738), (110, 194869)]