21953876

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{21191}}^1$

素因数の和:21239

約数の個数: 24

約数和(自身を含む): 45096576

約数和(自身を除く): 23142700

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 21191, 42382, 84764, 148337, 296674, 593348, 784067, 1568134, 3136268, 5488469, 10976938, 21953876]

約数ペア:

[(1, 21953876), (2, 10976938), (4, 5488469), (7, 3136268), (14, 1568134), (28, 784067), (37, 593348), (74, 296674), (148, 148337), (259, 84764), (518, 42382), (1036, 21191)]