20961476

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{1097}}^1$

素因数の和:1399

約数の個数: 24

約数和(自身を含む): 39014136

約数和(自身を除く): 18052660

約数列:

[1, 2, 4, 17, 34, 68, 281, 562, 1097, 1124, 2194, 4388, 4777, 9554, 18649, 19108, 37298, 74596, 308257, 616514, 1233028, 5240369, 10480738, 20961476]

約数ペア:

[(1, 20961476), (2, 10480738), (4, 5240369), (17, 1233028), (34, 616514), (68, 308257), (281, 74596), (562, 37298), (1097, 19108), (1124, 18649), (2194, 9554), (4388, 4777)]