20135889

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{431}}^1$

素因数の和:645

約数の個数: 24

約数和(自身を含む): 30326400

約数和(自身を除く): 10190511

約数列:

[1, 3, 9, 29, 87, 179, 261, 431, 537, 1293, 1611, 3879, 5191, 12499, 15573, 37497, 46719, 77149, 112491, 231447, 694341, 2237321, 6711963, 20135889]

約数ペア:

[(1, 20135889), (3, 6711963), (9, 2237321), (29, 694341), (87, 231447), (179, 112491), (261, 77149), (431, 46719), (537, 37497), (1293, 15573), (1611, 12499), (3879, 5191)]