66987891

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{877}}^1$

素因数の和:953

約数の個数: 40

約数和(自身を含む): 107087904

約数和(自身を除く): 40100013

約数列:

[1, 3, 9, 23, 27, 41, 69, 81, 123, 207, 369, 621, 877, 943, 1107, 1863, 2631, 2829, 3321, 7893, 8487, 20171, 23679, 25461, 35957, 60513, 71037, 76383, 107871, 181539, 323613, 544617, 827011, 970839, 1633851, 2481033, 2912517, 7443099, 22329297, 66987891]

約数ペア:

[(1, 66987891), (3, 22329297), (9, 7443099), (23, 2912517), (27, 2481033), (41, 1633851), (69, 970839), (81, 827011), (123, 544617), (207, 323613), (369, 181539), (621, 107871), (877, 76383), (943, 71037), (1107, 60513), (1863, 35957), (2631, 25461), (2829, 23679), (3321, 20171), (7893, 8487)]