21604144

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79427}}^1$

素因数の和:79452

約数の個数: 20

約数和(自身を含む): 44320824

約数和(自身を除く): 22716680

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79427, 158854, 317708, 635416, 1270832, 1350259, 2700518, 5401036, 10802072, 21604144]

約数ペア:

[(1, 21604144), (2, 10802072), (4, 5401036), (8, 2700518), (16, 1350259), (17, 1270832), (34, 635416), (68, 317708), (136, 158854), (272, 79427)]