20867476

素因数分解:

$2^2\times 7^1\times {\mathrm{317}}^1\times {\mathrm{2351}}^1$

素因数の和:2679

約数の個数: 24

約数和(自身を含む): 41884416

約数和(自身を除く): 21016940

約数列:

[1, 2, 4, 7, 14, 28, 317, 634, 1268, 2219, 2351, 4438, 4702, 8876, 9404, 16457, 32914, 65828, 745267, 1490534, 2981068, 5216869, 10433738, 20867476]

約数ペア:

[(1, 20867476), (2, 10433738), (4, 5216869), (7, 2981068), (14, 1490534), (28, 745267), (317, 65828), (634, 32914), (1268, 16457), (2219, 9404), (2351, 8876), (4438, 4702)]