21925981

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2141}}^1$

素因数の和:2185

約数の個数: 24

約数和(自身を含む): 29302560

約数和(自身を除く): 7376579

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 539, 931, 1463, 2141, 10241, 14987, 23551, 40679, 104909, 164857, 284753, 447469, 1153999, 1993271, 3132283, 21925981]

約数ペア:

[(1, 21925981), (7, 3132283), (11, 1993271), (19, 1153999), (49, 447469), (77, 284753), (133, 164857), (209, 104909), (539, 40679), (931, 23551), (1463, 14987), (2141, 10241)]