21730210

素因数分解:

$2^1\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{1699}}^1$

素因数の和:2985

約数の個数: 16

約数和(自身を含む): 39168000

約数和(自身を除く): 17437790

約数列:

[1, 2, 5, 10, 1279, 1699, 2558, 3398, 6395, 8495, 12790, 16990, 2173021, 4346042, 10865105, 21730210]

約数ペア:

[(1, 21730210), (2, 10865105), (5, 4346042), (10, 2173021), (1279, 16990), (1699, 12790), (2558, 8495), (3398, 6395)]