19993752

素因数分解:

$2^3\times 3^2\times {\mathrm{277691}}^1$

素因数の和:277703

約数の個数: 24

約数和(自身を含む): 54149940

約数和(自身を除く): 34156188

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 277691, 555382, 833073, 1110764, 1666146, 2221528, 2499219, 3332292, 4998438, 6664584, 9996876, 19993752]

約数ペア:

[(1, 19993752), (2, 9996876), (3, 6664584), (4, 4998438), (6, 3332292), (8, 2499219), (9, 2221528), (12, 1666146), (18, 1110764), (24, 833073), (36, 555382), (72, 277691)]