21281672

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{7369}}^1$

素因数の和:7413

約数の個数: 24

約数和(自身を含む): 42119550

約数和(自身を除く): 20837878

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 361, 722, 1444, 2888, 7369, 14738, 29476, 58952, 140011, 280022, 560044, 1120088, 2660209, 5320418, 10640836, 21281672]

約数ペア:

[(1, 21281672), (2, 10640836), (4, 5320418), (8, 2660209), (19, 1120088), (38, 560044), (76, 280022), (152, 140011), (361, 58952), (722, 29476), (1444, 14738), (2888, 7369)]