18717970

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{6907}}^1$

素因数の和:7185

約数の個数: 16

約数和(自身を含む): 33821568

約数和(自身を除く): 15103598

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 6907, 13814, 34535, 69070, 1871797, 3743594, 9358985, 18717970]

約数ペア:

[(1, 18717970), (2, 9358985), (5, 3743594), (10, 1871797), (271, 69070), (542, 34535), (1355, 13814), (2710, 6907)]