20397370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1381}}^1$

素因数の和:1606

約数の個数: 32

約数和(自身を含む): 42189696

約数和(自身を除く): 21792326

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 211, 422, 1055, 1381, 1477, 2110, 2762, 2954, 6905, 7385, 9667, 13810, 14770, 19334, 48335, 96670, 291391, 582782, 1456955, 2039737, 2913910, 4079474, 10198685, 20397370]

約数ペア:

[(1, 20397370), (2, 10198685), (5, 4079474), (7, 2913910), (10, 2039737), (14, 1456955), (35, 582782), (70, 291391), (211, 96670), (422, 48335), (1055, 19334), (1381, 14770), (1477, 13810), (2110, 9667), (2762, 7385), (2954, 6905)]