81317601

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:723

約数の個数: 40

約数和(自身を含む): 127861184

約数和(自身を除く): 46543583

約数列:

[1, 3, 9, 27, 37, 43, 81, 111, 129, 333, 387, 631, 999, 1161, 1591, 1893, 2997, 3483, 4773, 5679, 14319, 17037, 23347, 27133, 42957, 51111, 70041, 81399, 128871, 210123, 244197, 630369, 732591, 1003921, 1891107, 2197773, 3011763, 9035289, 27105867, 81317601]

約数ペア:

[(1, 81317601), (3, 27105867), (9, 9035289), (27, 3011763), (37, 2197773), (43, 1891107), (81, 1003921), (111, 732591), (129, 630369), (333, 244197), (387, 210123), (631, 128871), (999, 81399), (1161, 70041), (1591, 51111), (1893, 42957), (2997, 27133), (3483, 23347), (4773, 17037), (5679, 14319)]