21668144

素因数分解:

$2^4\times {\mathrm{1049}}^1\times {\mathrm{1291}}^1$

素因数の和:2348

約数の個数: 20

約数和(自身を含む): 42054600

約数和(自身を除く): 20386456

約数列:

[1, 2, 4, 8, 16, 1049, 1291, 2098, 2582, 4196, 5164, 8392, 10328, 16784, 20656, 1354259, 2708518, 5417036, 10834072, 21668144]

約数ペア:

[(1, 21668144), (2, 10834072), (4, 5417036), (8, 2708518), (16, 1354259), (1049, 20656), (1291, 16784), (2098, 10328), (2582, 8392), (4196, 5164)]