13278411

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{9643}}^1$

素因数の和:9672

約数の個数: 20

約数和(自身を含む): 21004632

約数和(自身を除く): 7726221

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 9643, 28929, 86787, 163931, 260361, 491793, 781083, 1475379, 4426137, 13278411]

約数ペア:

[(1, 13278411), (3, 4426137), (9, 1475379), (17, 781083), (27, 491793), (51, 260361), (81, 163931), (153, 86787), (459, 28929), (1377, 9643)]