21845210

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53281}}^1$

素因数の和:53329

約数の個数: 16

約数和(自身を含む): 40281192

約数和(自身を除く): 18435982

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 53281, 106562, 266405, 532810, 2184521, 4369042, 10922605, 21845210]

約数ペア:

[(1, 21845210), (2, 10922605), (5, 4369042), (10, 2184521), (41, 532810), (82, 266405), (205, 106562), (410, 53281)]