21406832

素因数分解:

$2^4\times {\mathrm{271}}^1\times {\mathrm{4937}}^1$

素因数の和:5216

約数の個数: 20

約数和(自身を含む): 41637216

約数和(自身を除く): 20230384

約数列:

[1, 2, 4, 8, 16, 271, 542, 1084, 2168, 4336, 4937, 9874, 19748, 39496, 78992, 1337927, 2675854, 5351708, 10703416, 21406832]

約数ペア:

[(1, 21406832), (2, 10703416), (4, 5351708), (8, 2675854), (16, 1337927), (271, 78992), (542, 39496), (1084, 19748), (2168, 9874), (4336, 4937)]