19521968

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{64217}}^1$

素因数の和:64244

約数の個数: 20

約数和(自身を含む): 39815160

約数和(自身を除く): 20293192

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 64217, 128434, 256868, 513736, 1027472, 1220123, 2440246, 4880492, 9760984, 19521968]

約数ペア:

[(1, 19521968), (2, 9760984), (4, 4880492), (8, 2440246), (16, 1220123), (19, 1027472), (38, 513736), (76, 256868), (152, 128434), (304, 64217)]