81363821

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{439}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 106444800

約数和(自身を除く): 25080979

約数列:

[1, 7, 11, 29, 77, 83, 203, 319, 439, 581, 913, 2233, 2407, 3073, 4829, 6391, 12731, 16849, 26477, 33803, 36437, 89117, 140041, 185339, 255059, 400807, 980287, 1056673, 2805649, 7396711, 11623403, 81363821]

約数ペア:

[(1, 81363821), (7, 11623403), (11, 7396711), (29, 2805649), (77, 1056673), (83, 980287), (203, 400807), (319, 255059), (439, 185339), (581, 140041), (913, 89117), (2233, 36437), (2407, 33803), (3073, 26477), (4829, 16849), (6391, 12731)]