20708001

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{499}}^1$

素因数の和:590

約数の個数: 32

約数和(自身を含む): 32400000

約数和(自身を除く): 11691999

約数列:

[1, 3, 9, 27, 29, 53, 87, 159, 261, 477, 499, 783, 1431, 1497, 1537, 4491, 4611, 13473, 13833, 14471, 26447, 41499, 43413, 79341, 130239, 238023, 390717, 714069, 766963, 2300889, 6902667, 20708001]

約数ペア:

[(1, 20708001), (3, 6902667), (9, 2300889), (27, 766963), (29, 714069), (53, 390717), (87, 238023), (159, 130239), (261, 79341), (477, 43413), (499, 41499), (783, 26447), (1431, 14471), (1497, 13833), (1537, 13473), (4491, 4611)]