81715599

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{3593}}^1$

素因数の和:3644

約数の個数: 36

約数和(自身を含む): 142408656

約数和(自身を除く): 60693057

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 361, 399, 1083, 1197, 2527, 3249, 3593, 7581, 10779, 22743, 25151, 32337, 68267, 75453, 204801, 226359, 477869, 614403, 1297073, 1433607, 3891219, 4300821, 9079511, 11673657, 27238533, 81715599]

約数ペア:

[(1, 81715599), (3, 27238533), (7, 11673657), (9, 9079511), (19, 4300821), (21, 3891219), (57, 1433607), (63, 1297073), (133, 614403), (171, 477869), (361, 226359), (399, 204801), (1083, 75453), (1197, 68267), (2527, 32337), (3249, 25151), (3593, 22743), (7581, 10779)]