21517681317

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{52879}}^1$

素因数の和:52982

約数の個数: 48

約数和(自身を含む): 33758592000

約数和(自身を除く): 12240910683

約数列:

[1, 3, 11, 19, 33, 57, 59, 121, 177, 209, 363, 627, 649, 1121, 1947, 2299, 3363, 6897, 7139, 12331, 21417, 36993, 52879, 135641, 158637, 406923, 581669, 1004701, 1745007, 3014103, 3119861, 6398359, 9359583, 11051711, 19195077, 33155133, 34318471, 59277359, 102955413, 121568821, 177832077, 364706463, 377503181, 652050949, 1132509543, 1956152847, 7172560439, 21517681317]

約数ペア:

[(1, 21517681317), (3, 7172560439), (11, 1956152847), (19, 1132509543), (33, 652050949), (57, 377503181), (59, 364706463), (121, 177832077), (177, 121568821), (209, 102955413), (363, 59277359), (627, 34318471), (649, 33155133), (1121, 19195077), (1947, 11051711), (2299, 9359583), (3363, 6398359), (6897, 3119861), (7139, 3014103), (12331, 1745007), (21417, 1004701), (36993, 581669), (52879, 406923), (135641, 158637)]