20038563

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{293}}^1$

素因数の和:468

約数の個数: 32

約数和(自身を含む): 31752000

約数和(自身を除く): 11713437

約数列:

[1, 3, 9, 17, 27, 51, 149, 153, 293, 447, 459, 879, 1341, 2533, 2637, 4023, 4981, 7599, 7911, 14943, 22797, 43657, 44829, 68391, 130971, 134487, 392913, 742169, 1178739, 2226507, 6679521, 20038563]

約数ペア:

[(1, 20038563), (3, 6679521), (9, 2226507), (17, 1178739), (27, 742169), (51, 392913), (149, 134487), (153, 130971), (293, 68391), (447, 44829), (459, 43657), (879, 22797), (1341, 14943), (2533, 7911), (2637, 7599), (4023, 4981)]