18581968

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{4133}}^1$

素因数の和:4422

約数の個数: 20

約数和(自身を含む): 36139428

約数和(自身を除く): 17557460

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4133, 4496, 8266, 16532, 33064, 66128, 1161373, 2322746, 4645492, 9290984, 18581968]

約数ペア:

[(1, 18581968), (2, 9290984), (4, 4645492), (8, 2322746), (16, 1161373), (281, 66128), (562, 33064), (1124, 16532), (2248, 8266), (4133, 4496)]