21387226

素因数分解:

$2^1\times 7^2\times {\mathrm{229}}^1\times {\mathrm{953}}^1$

素因数の和:1198

約数の個数: 24

約数和(自身を含む): 37520820

約数和(自身を除く): 16133594

約数列:

[1, 2, 7, 14, 49, 98, 229, 458, 953, 1603, 1906, 3206, 6671, 11221, 13342, 22442, 46697, 93394, 218237, 436474, 1527659, 3055318, 10693613, 21387226]

約数ペア:

[(1, 21387226), (2, 10693613), (7, 3055318), (14, 1527659), (49, 436474), (98, 218237), (229, 93394), (458, 46697), (953, 22442), (1603, 13342), (1906, 11221), (3206, 6671)]