21497014

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139591}}^1$

素因数の和:139611

約数の個数: 16

約数和(自身を含む): 40202496

約数和(自身を除く): 18705482

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 139591, 279182, 977137, 1535501, 1954274, 3071002, 10748507, 21497014]

約数ペア:

[(1, 21497014), (2, 10748507), (7, 3071002), (11, 1954274), (14, 1535501), (22, 977137), (77, 279182), (154, 139591)]