20187145431

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{43980709}}^1$

素因数の和:43980735

約数の個数: 16

約数和(自身を含む): 31666111200

約数和(自身を除く): 11478965769

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 43980709, 131942127, 395826381, 747672053, 1187479143, 2243016159, 6729048477, 20187145431]

約数ペア:

[(1, 20187145431), (3, 6729048477), (9, 2243016159), (17, 1187479143), (27, 747672053), (51, 395826381), (153, 131942127), (459, 43980709)]