19900658

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{10061}}^1$

素因数の和:10129

約数の個数: 16

約数和(自身を含む): 31876416

約数和(自身を除く): 11975758

約数列:

[1, 2, 23, 43, 46, 86, 989, 1978, 10061, 20122, 231403, 432623, 462806, 865246, 9950329, 19900658]

約数ペア:

[(1, 19900658), (2, 9950329), (23, 865246), (43, 462806), (46, 432623), (86, 231403), (989, 20122), (1978, 10061)]