18757916

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{257}}^2$

素因数の和:589

約数の個数: 18

約数和(自身を含む): 33418728

約数和(自身を除く): 14660812

約数列:

[1, 2, 4, 71, 142, 257, 284, 514, 1028, 18247, 36494, 66049, 72988, 132098, 264196, 4689479, 9378958, 18757916]

約数ペア:

[(1, 18757916), (2, 9378958), (4, 4689479), (71, 264196), (142, 132098), (257, 72988), (284, 66049), (514, 36494), (1028, 18247)]