19557340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{88897}}^1$

素因数の和:88917

約数の個数: 24

約数和(自身を含む): 44804592

約数和(自身を除く): 25247252

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 88897, 177794, 355588, 444485, 888970, 977867, 1777940, 1955734, 3911468, 4889335, 9778670, 19557340]

約数ペア:

[(1, 19557340), (2, 9778670), (4, 4889335), (5, 3911468), (10, 1955734), (11, 1777940), (20, 977867), (22, 888970), (44, 444485), (55, 355588), (110, 177794), (220, 88897)]