21437878

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1301}}^1$

素因数の和:1428

約数の個数: 32

約数和(自身を含む): 40497408

約数和(自身を除く): 19059530

約数列:

[1, 2, 7, 11, 14, 22, 77, 107, 154, 214, 749, 1177, 1301, 1498, 2354, 2602, 8239, 9107, 14311, 16478, 18214, 28622, 100177, 139207, 200354, 278414, 974449, 1531277, 1948898, 3062554, 10718939, 21437878]

約数ペア:

[(1, 21437878), (2, 10718939), (7, 3062554), (11, 1948898), (14, 1531277), (22, 974449), (77, 278414), (107, 200354), (154, 139207), (214, 100177), (749, 28622), (1177, 18214), (1301, 16478), (1498, 14311), (2354, 9107), (2602, 8239)]