21906918

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{110641}}^1$

素因数の和:110660

約数の個数: 24

約数和(自身を含む): 51780456

約数和(自身を除く): 29873538

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 110641, 221282, 331923, 663846, 995769, 1217051, 1991538, 2434102, 3651153, 7302306, 10953459, 21906918]

約数ペア:

[(1, 21906918), (2, 10953459), (3, 7302306), (6, 3651153), (9, 2434102), (11, 1991538), (18, 1217051), (22, 995769), (33, 663846), (66, 331923), (99, 221282), (198, 110641)]