18656859

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{2089}}^1$

素因数の和:2334

約数の個数: 16

約数和(自身を含む): 26919200

約数和(自身を除く): 8262341

約数列:

[1, 3, 13, 39, 229, 687, 2089, 2977, 6267, 8931, 27157, 81471, 478381, 1435143, 6218953, 18656859]

約数ペア:

[(1, 18656859), (3, 6218953), (13, 1435143), (39, 478381), (229, 81471), (687, 27157), (2089, 8931), (2977, 6267)]