21967924

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{2089}}^1$

素因数の和:2343

約数の個数: 24

約数和(自身を含む): 42134400

約数和(自身を除く): 20166476

約数列:

[1, 2, 4, 11, 22, 44, 239, 478, 956, 2089, 2629, 4178, 5258, 8356, 10516, 22979, 45958, 91916, 499271, 998542, 1997084, 5491981, 10983962, 21967924]

約数ペア:

[(1, 21967924), (2, 10983962), (4, 5491981), (11, 1997084), (22, 998542), (44, 499271), (239, 91916), (478, 45958), (956, 22979), (2089, 10516), (2629, 8356), (4178, 5258)]