19902256

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113081}}^1$

素因数の和:113100

約数の個数: 20

約数和(自身を含む): 42066504

約数和(自身を除く): 22164248

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 113081, 226162, 452324, 904648, 1243891, 1809296, 2487782, 4975564, 9951128, 19902256]

約数ペア:

[(1, 19902256), (2, 9951128), (4, 4975564), (8, 2487782), (11, 1809296), (16, 1243891), (22, 904648), (44, 452324), (88, 226162), (176, 113081)]