71781147

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:649

約数の個数: 40

約数和(自身を含む): 112890096

約数和(自身を除く): 41108949

約数列:

[1, 3, 9, 27, 37, 43, 81, 111, 129, 333, 387, 557, 999, 1161, 1591, 1671, 2997, 3483, 4773, 5013, 14319, 15039, 20609, 23951, 42957, 45117, 61827, 71853, 128871, 185481, 215559, 556443, 646677, 886187, 1669329, 1940031, 2658561, 7975683, 23927049, 71781147]

約数ペア:

[(1, 71781147), (3, 23927049), (9, 7975683), (27, 2658561), (37, 1940031), (43, 1669329), (81, 886187), (111, 646677), (129, 556443), (333, 215559), (387, 185481), (557, 128871), (999, 71853), (1161, 61827), (1591, 45117), (1671, 42957), (2997, 23951), (3483, 20609), (4773, 15039), (5013, 14319)]