19662904

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{21751}}^1$

素因数の和:21870

約数の個数: 16

約数和(自身を含む): 37195920

約数和(自身を除く): 17533016

約数列:

[1, 2, 4, 8, 113, 226, 452, 904, 21751, 43502, 87004, 174008, 2457863, 4915726, 9831452, 19662904]

約数ペア:

[(1, 19662904), (2, 9831452), (4, 4915726), (8, 2457863), (113, 174008), (226, 87004), (452, 43502), (904, 21751)]