21806666

素因数分解:

$2^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{7673}}^1$

素因数の和:7718

約数の個数: 24

約数和(自身を含む): 39367620

約数和(自身を除く): 17560954

約数列:

[1, 2, 7, 14, 29, 49, 58, 98, 203, 406, 1421, 2842, 7673, 15346, 53711, 107422, 222517, 375977, 445034, 751954, 1557619, 3115238, 10903333, 21806666]

約数ペア:

[(1, 21806666), (2, 10903333), (7, 3115238), (14, 1557619), (29, 751954), (49, 445034), (58, 375977), (98, 222517), (203, 107422), (406, 53711), (1421, 15346), (2842, 7673)]