21971556

素因数分解:

$2^2\times 3^2\times {\mathrm{367}}^1\times {\mathrm{1663}}^1$

素因数の和:2040

約数の個数: 36

約数和(自身を含む): 55724032

約数和(自身を除く): 33752476

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 367, 734, 1101, 1468, 1663, 2202, 3303, 3326, 4404, 4989, 6606, 6652, 9978, 13212, 14967, 19956, 29934, 59868, 610321, 1220642, 1830963, 2441284, 3661926, 5492889, 7323852, 10985778, 21971556]

約数ペア:

[(1, 21971556), (2, 10985778), (3, 7323852), (4, 5492889), (6, 3661926), (9, 2441284), (12, 1830963), (18, 1220642), (36, 610321), (367, 59868), (734, 29934), (1101, 19956), (1468, 14967), (1663, 13212), (2202, 9978), (3303, 6652), (3326, 6606), (4404, 4989)]