20161609881

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1\times {\mathrm{64439}}^1$

素因数の和:64813

約数の個数: 32

約数和(自身を含む): 31475589120

約数和(自身を除く): 11313979239

約数列:

[1, 3, 7, 21, 47, 141, 317, 329, 951, 987, 2219, 6657, 14899, 44697, 64439, 104293, 193317, 312879, 451073, 1353219, 3028633, 9085899, 20427163, 21200431, 61281489, 63601293, 142990141, 428970423, 960076661, 2880229983, 6720536627, 20161609881]

約数ペア:

[(1, 20161609881), (3, 6720536627), (7, 2880229983), (21, 960076661), (47, 428970423), (141, 142990141), (317, 63601293), (329, 61281489), (951, 21200431), (987, 20427163), (2219, 9085899), (6657, 3028633), (14899, 1353219), (44697, 451073), (64439, 312879), (104293, 193317)]