21442810

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1061}}^1$

素因数の和:1158

約数の個数: 32

約数和(自身を含む): 40372992

約数和(自身を除く): 18930182

約数列:

[1, 2, 5, 10, 43, 47, 86, 94, 215, 235, 430, 470, 1061, 2021, 2122, 4042, 5305, 10105, 10610, 20210, 45623, 49867, 91246, 99734, 228115, 249335, 456230, 498670, 2144281, 4288562, 10721405, 21442810]

約数ペア:

[(1, 21442810), (2, 10721405), (5, 4288562), (10, 2144281), (43, 498670), (47, 456230), (86, 249335), (94, 228115), (215, 99734), (235, 91246), (430, 49867), (470, 45623), (1061, 20210), (2021, 10610), (2122, 10105), (4042, 5305)]