21477291275

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{417643}}^1$

素因数の和:417692

約数の個数: 36

約数和(自身を含む): 30995031816

約数和(自身を除く): 9517740541

約数列:

[1, 5, 11, 17, 25, 55, 85, 121, 187, 275, 425, 605, 935, 2057, 3025, 4675, 10285, 51425, 417643, 2088215, 4594073, 7099931, 10441075, 22970365, 35499655, 50534803, 78099241, 114851825, 177498275, 252674015, 390496205, 859091651, 1263370075, 1952481025, 4295458255, 21477291275]

約数ペア:

[(1, 21477291275), (5, 4295458255), (11, 1952481025), (17, 1263370075), (25, 859091651), (55, 390496205), (85, 252674015), (121, 177498275), (187, 114851825), (275, 78099241), (425, 50534803), (605, 35499655), (935, 22970365), (2057, 10441075), (3025, 7099931), (4675, 4594073), (10285, 2088215), (51425, 417643)]