21393952

素因数分解:

$2^5\times {\mathrm{449}}^1\times {\mathrm{1489}}^1$

素因数の和:1948

約数の個数: 24

約数和(自身を含む): 42241500

約数和(自身を除く): 20847548

約数列:

[1, 2, 4, 8, 16, 32, 449, 898, 1489, 1796, 2978, 3592, 5956, 7184, 11912, 14368, 23824, 47648, 668561, 1337122, 2674244, 5348488, 10696976, 21393952]

約数ペア:

[(1, 21393952), (2, 10696976), (4, 5348488), (8, 2674244), (16, 1337122), (32, 668561), (449, 47648), (898, 23824), (1489, 14368), (1796, 11912), (2978, 7184), (3592, 5956)]