21037148

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{11119}}^1$

素因数の和:11177

約数の個数: 24

約数和(自身を含む): 41099520

約数和(自身を除く): 20062372

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 11119, 22238, 44476, 122309, 244618, 478117, 489236, 956234, 1912468, 5259287, 10518574, 21037148]

約数ペア:

[(1, 21037148), (2, 10518574), (4, 5259287), (11, 1912468), (22, 956234), (43, 489236), (44, 478117), (86, 244618), (172, 122309), (473, 44476), (946, 22238), (1892, 11119)]